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AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 1 - 66 data sheet, confidential AS3515 stereo audio codec with system power management 1 general description the AS3515 is a low power stereo audio codec and is designed for portable digital audio applications. it allows playback in cd quality and recording in fm-stereo quality. it has a variety of audio inputs and outputs to directly connect electret microphones, 16 headset, 4 speaker and auxiliary signal sources via a 10-channel mixer. it only consumes 22mw in playback mode. further the device offers advanced power management functions. all necessary ics and peripherals in a flash based digital audio player are supplied by the AS3515. the power management block generates 9 different supply voltages out of the battery supply. cpu, nand flash, sram, memory cards, lcd back-light, usb rx/tx can be powered. the different supply voltages are programmable via the serial control interface. it also contains a charger and is designed for battery supplies from 1v to 5v. the AS3515 has an on-chip, phase locked loop (pll) controlled, clock generator. it generates 44.1khz, 48khz and other sample rates defined in mp3, aac, wma, ogg vorbis etc. no additional external crystal or pll is needed. further the AS3515 has an independent 32khz real time clock (rtc) on chip which allows a complete power down of the system cpu. 2 key features multi-bit sigma delta converters ? dac: 18bit with 94db snr (?a? weighted) , 48khz ? adc: 14bit with 82db snr (?a? weighted), 16khz 2 microphone inputs ? 3 gain pre-setting (28db/34db/40db) and agc ? 32 gain steps @1.5db and mute ? supply for electret microphone ? microphone detection ? remote control by switch 2 line inputs ? volume control via serial interface ? 32 steps @1.5db and mute ? stereo or 2x mono or mono differential line outputs ? volume control via serial interface ? 32 steps @1.5db and mute ? 1vp @10k ? mono differential 5mw to 32 (ear-peace) audio mixer ? 10 channel input/output mixer with agc ? mixes line inputs and microphones with dac ? left and right channels independent high efficiency headphone amplifier ? volume control via serial interface ? 32 steps @1.5db and mute ? 2x40mw @16 driver capability ? headphone and over-current detection ? phantom ground eliminates large capacitors high power speaker amplifier ? volume control via serial interface ? 32 steps @1.5db and mute ? 2x500mw @8 driver capability ? over-current detection power management ? step up for system supply (3.0v ? 3.6v) ? charge pump for cpu core (0.85v ? 1.8v, 200ma) ? step up for backlight (15v, 38.5ma) ? ldo for digital supply (2.9v, 200ma) ? ldo for analogue supply (2.9v, 200ma) ? ldo for peripherals (1.7v-3.3v, 200ma) ? ldo for peripherals (3.1v-3.3v, 200ma) ? ldo for rtc (1.0v-2.5v, 2ma) ? ldo for usb 1.1 transceiver (3.26v, 10ma) ? battery supervision ? 10sec emergency shut-down battery charger ? automatic trickle charge (50ma) ? prog. constant current charging (100-400ma) ? prog. constant voltage charging (3.9v-4.25v) real time clock ? ultra low power 32khz oscillator ? 32bit rtc sec counter ? selectable alarm (seconds or minutes) general purpose adc ? 10bit resolution ? 16 inputs analogue multiplexer interfaces ? i2s digital audio interface ? 2 wire serial control interface ? watchdog via serial interface ? power good pin ? 128bit unique id (otp) ? 17 different interrupts package ? ctbga64 [7.0x7.0x1.1mm] 0.8mm pitch ? lqfp64 [10x10x1.4mm] 0.5mm pitch 3 application portable digital audio player and recorder pda, smartphone
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 2 - 66 4 block diagram figure 1 AS3515 block diagram
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 3 - 66 contents 1 general de scripti on ............................................................................................................ ............................. 1 2 key feat ures................................................................................................................... ................................. 1 3 applicat ion ....................................................................................................................................................... 1 4 block di agram .................................................................................................................................................. 2 5 absolute maximum rati ngs (non-op erating)....................................................................................... ............ 6 5.1 operating c onditio ns ........................................................................................................... ..................... 7 6 detailed functional bl ock descri ption.......................................................................................... .................... 8 6.1 line ou tput .................................................................................................................... ........................... 8 6.1.1 general........................................................................................................................ ...................... 8 6.1.2 register de scription ........................................................................................................... ............... 8 6.1.3 parame ter.......................................................................................................................................... 9 6.2 headphone out put ............................................................................................................... .................. 10 6.2.1 general........................................................................................................................ .................... 10 6.2.2 phantom ground ................................................................................................................. ............ 10 6.2.3 no-pop f uncti on................................................................................................................ .............. 10 6.2.4 over-current protec tion ........................................................................................................ ........... 10 6.2.5 headphone de tection ............................................................................................................ .......... 10 6.2.6 power save opti ons ............................................................................................................. ........... 10 6.2.7 parame ter...................................................................................................................... .................. 11 6.2.8 register de scription ........................................................................................................... ............. 11 6.3 speaker output................................................................................................................. ...................... 13 6.3.1 general........................................................................................................................ .................... 13 6.3.2 no-pop f uncti on................................................................................................................ .............. 13 6.3.3 over-current protec tion ........................................................................................................ ........... 13 6.3.4 power save opti ons ............................................................................................................. ........... 13 6.3.5 parame ter...................................................................................................................... .................. 14 6.3.6 register de scription ........................................................................................................... ............. 14 6.4 microphone i nputs (2 x) ......................................................................................................... .................. 16 6.4.1 general........................................................................................................................ .................... 16 6.4.2 agc............................................................................................................................ ..................... 16 6.4.3 supply & de tection ............................................................................................................. ............. 16 6.4.4 remote c ontrol................................................................................................................. ............... 16 6.4.5 parame ter...................................................................................................................... .................. 17 6.4.6 register de scription ........................................................................................................... ............. 17 6.5 line input s (2x) ............................................................................................................... ........................ 19 6.5.1 general........................................................................................................................ .................... 19 6.5.2 parame ter...................................................................................................................... .................. 19 6.5.3 register de scription ........................................................................................................... ............. 19 6.6 digital audio interface........................................................................................................ ..................... 21 6.6.1 input .......................................................................................................................... ....................... 21 6.6.2 out put......................................................................................................................... ..................... 21 6.6.3 signal de scripti on............................................................................................................. ............... 21 6.6.4 power save opti ons ............................................................................................................. ........... 21 6.6.5 clock super vision .............................................................................................................. .............. 21 6.6.6 parame ter...................................................................................................................... .................. 22 6.6.7 register de scription ........................................................................................................... ............. 22 6.7 audio output mixer ............................................................................................................. .................... 24 6.7.1 general........................................................................................................................ .................... 24 6.7.2 agc............................................................................................................................ ..................... 24 6.7.3 register de scription ........................................................................................................... ............. 24 6.8 audio settings ................................................................................................................. ........................ 25 6.8.1 register de scription ........................................................................................................... ............. 25 6.9 3v step-up converter........................................................................................................... .................. 27 6.9.1 general........................................................................................................................ .................... 27 6.9.2 parame ter...................................................................................................................... .................. 28 6.10 low drop out regula tors........................................................................................................ ............ 29 6.10.1 general ........................................................................................................................ ................ 29 6.10.2 ldo1........................................................................................................................... ................. 29 6.10.3 ldo2........................................................................................................................... ................. 29 6.10.4 ldo3........................................................................................................................... ................. 29 6.10.5 ldo4........................................................................................................................... ................. 30 6.10.6 parame ter ...................................................................................................................... .............. 30 6.11 charge-pump step-do wn converter................................................................................................ ... 32
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 4 - 66 6.11.1 general ........................................................................................................................ ................ 32 6.11.2 functional de scription......................................................................................................... ......... 32 6.11.3 parame ter ...................................................................................................................... .............. 34 6.12 system ......................................................................................................................... .................... 35 6.12.1 general ........................................................................................................................ ................ 35 6.12.2 power up ....................................................................................................................... .............. 35 6.12.3 power down..................................................................................................................... ............ 35 6.12.4 parame ter ...................................................................................................................... .............. 36 6.12.5 register de scription........................................................................................................... .......... 36 6.13 char ger ........................................................................................................................ ....................... 38 6.13.1 general ........................................................................................................................ ................ 38 6.13.2 trickle char ge................................................................................................................. ............. 38 6.13.3 temperature supervi sion........................................................................................................ ..... 38 6.13.4 parame ter ...................................................................................................................... .............. 38 6.13.5 register de scription........................................................................................................... .......... 39 6.14 15v step-up conver ter .......................................................................................................... ............. 40 6.14.1 general ........................................................................................................................ ................ 40 6.14.2 parame ter ...................................................................................................................... .............. 40 6.14.3 register de scription........................................................................................................... .......... 41 6.15 supervi sor ..................................................................................................................... ...................... 42 6.15.1 general ........................................................................................................................ ................ 42 6.15.2 bvdd superv ision ............................................................................................................... ........ 42 6.15.3 junction temperat ure super vision............................................................................................... 42 6.15.4 register de scription........................................................................................................... .......... 42 6.16 interrupt g eneratio n ........................................................................................................... ................. 43 6.16.1 general ........................................................................................................................ ................ 43 6.16.2 irq source in terpreta tion ...................................................................................................... ...... 43 6.16.3 de-bounc er ..................................................................................................................... ............. 43 6.16.4 register de scription........................................................................................................... .......... 43 6.17 real time clock ................................................................................................................ .................. 45 6.17.1 general ........................................................................................................................ ................ 45 6.17.2 rtc s upply ..................................................................................................................... ............. 45 6.17.3 register de scription........................................................................................................... .......... 45 6.18 10-bit adc ..................................................................................................................... ..................... 47 6.18.1 general ........................................................................................................................ ................ 47 6.18.2 input s ources .................................................................................................................. ............. 47 6.18.3 refere nce ...................................................................................................................... .............. 47 6.18.4 parame ter ...................................................................................................................... .............. 48 6.18.5 register de scription........................................................................................................... .......... 48 6.19 128 bit fuse array ............................................................................................................. .................. 50 6.19.1 general ........................................................................................................................ ................ 50 6.19.2 register de scription........................................................................................................... .......... 50 6.20 vtrm-l do ....................................................................................................................... .................. 51 6.20.1 general ........................................................................................................................ ................ 51 6.21 i2c control interf ace .......................................................................................................... ................. 52 6.21.1 general ........................................................................................................................ ................ 52 6.21.2 parame ter ...................................................................................................................... .............. 52 6.21.3 register de scription........................................................................................................... .......... 53 7 electrical s pecificat ion ....................................................................................................... ............................ 55 8 pinout and packagi ng ........................................................................................................... ......................... 57 8.1 pin descr iption................................................................................................................ ........................ 57 8.2 ball & pin a ssignmen t.......................................................................................................... ................... 59 8.2.1 ctbga64 ........................................................................................................................ ................ 59 8.2.2 lqfp64 ......................................................................................................................... .................. 60 8.3 package drawings and marking ................................................................................................... .......... 61 8.3.1 ctbga64 ........................................................................................................................ ................ 61 8.3.2 lqfp64 ......................................................................................................................... .................. 62 9 ordering in formati on ........................................................................................................... ........................... 65 10 copyri ght ...................................................................................................................... .............................. 66 11 disclai mer..................................................................................................................... .............................. 66 12 contact info rmation ............................................................................................................ ........................ 66
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 5 - 66 revision history revision date owner description 3.0 5.5.2005 pkm final release 3.01 12.5.2005 pkm changed soldering conditions (chapter 5) 3.02 12.5.2005 pkm updated charge pump and ldo typical performance characteristics(chapter 6.10, 6.11) 3.03 12.5.2005 pkm spelling corrections (chapter 6.18) 3.03 20.5.2005 pkm updated 15v dcdc descr iption (chapter 6.14) 3.04 18.10.05 pkm updated 3v and 15v dcdc block diagram (chapter 6.9, 6.14) 3.04 18.10.05 pkm changed interrupt de-bounce times (6.16) 3.04 11.4.06 pkm changed block diagram 3.1 3.6.08 pkm v15 changes: rtcsup startup deleted, uid added, chip id changed to 6h, updated package and order information
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 6 - 66 5 absolute maximum ratings (non-operating) stresses beyond the absolute maximum ratings may cause permanent damage to the device. these are stress ratings only. functiona l operation of the device at these or beyond those listed is not implied. caution: exposure to absolute maximum rating conditions may affect device reliability. table 1 absolute maximum ratings parameter symbol min max unit note dc supply voltag e bvdd, uvdd, rtcsup, chgin -0.5 7.0 v voltage difference of vss- terminals dvss, avss, vss3, vss15, vsscp, bvss -0.5 0.5 v voltage at digital pins v in -0.5 5.0 v vb1v, cscl, csda, pwr_up these pins have no diode to dvdd voltage at digital pins: v in -0.5 dvdd+0.5 v lrck, sclk, sdi, sdo, p_pvdd, p_cvdd, battemp, isink, xin32k, xout32k, xirq, pwgood voltage at 5v pins: v in -0.5 bvdd+0.5v v bgnd, hph_cm, hpgnd, hpl/r, spl/r voltage at analogue pins: v in -0.5 avdd+0.5 v loutl/r, vref, agnd, lin1l/r, lin2l/r, mic1p/n, mic2p/n, mic1sup, mic2sup voltage at regulator pins: v in -0.5 5.0 v avdd, dvdd, pvdd, cpvdd, cvdd input current (latchup immunity) i scr -100 100 ma norm: jedec 17 electrostatic discharge hbm esd +/-1 kv norm: mil 883 e method 3015 total power dissipation (all supplies and outputs) p t - 1000 mw valid for bga64 package storage temperature t strg -55 125 c humidity non-condensing 5 85 % table 2 soldering conditions symbol parameter min max unit comments t body package body temperature 260 c norm ipc/jedec j-std-020c, reflects moisture sensitivity level only t peak 235 245 c d well solder profile* 30 45 s above 217 c msl moisture sensitive level 3 1 represents a max. floor live time of 168h * austriamicrosystems ag strongly recommends to use underfill.
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 7 - 66 5.1 operating conditions table 3 operating conditions parameter symbol min max unit note battery supply voltage bvdd 3.0 5.5 v dcdc 3v supply voltage vb1v 1.0 3.6 v usb supply voltage uvdd 4.5 5.5 v digital supply voltage dvdd 2.8 3.6 v analogue supply voltage avdd 2.8 3.6 v charger supply voltage chg_in 4.5 5.5 v difference of positive supplies avdd-dvdd -0.25 0.25 v difference of negative supplies dvss, avss, vss3, vss15, vsscp, bvss any combination -0.1 0.1 v to achieve good performance, the negative supply terminals should be connected to low ohmic ground plane. ambient temperature t amb -20 85 c supply current bvdd 6.8 ma dac to hp without load and bias reduction enabled system clock frequency lrclk 8 48 khz according to 8-48ksps audio data
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 8 - 66 6 detailed functional block description 6.1 line output 6.1.1 general the line output is designed to provide the audio signal with typical 1vp at a load of minimum 10k , which is a minimum value for line inputs. additional this output amplifier is capable to drive a 32 load (e.g. an earpiece of a mobile phone. to achieve this, the operation mode can be switched from single ended stereo to mono differential. this output stage has an independent gain regulation for left and right channel with 32 steps @ 1.5db each. the gain can be set from ? 40.5db to +6db. figure 2 line output mode block diagrams stero mode mono differential mode please observe that gain of upper amplifier needs to be set to 0db 6.1.2 register description enabling the output stage is done via a control bit in the audio settings register (audioset1 register 0x14h). the line out dri ver itself is controlled by the following two registers. right line out register (00h) table 4 line_out_r register bit name default access description 7,6 reserved 00b r/w for testing purpose only, must be set to 0h 5 - 0b r/w not used 4..0 lor_vol 00000b r/w volume settings for right line output, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 9 - 66 left line out register (01h) table 5 line_out_l register bit name default access description 7,6 lo_ses_dm 00b r/w single ended stereo or differential mono selection 11: tbd. 10: output switched to single ended stereo 01: output switched to differential mono 00: output switched to mute 5 - 0b n/a not used 4..0 lol_vol 00000b r/w volume settings for left line output, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain 6.1.3 parameter table 6 line output characteristics symbol parameter notes min typ max unit stereo mode 10k ohm r l output load differential mode 32 ohm a0 gain programmable gain -40.5 6 db ? ax gain step-size 1.5 db gain step-precision 0.5 db snr signal to noise ratio stereo mode 100 db mute attenuation 100 db bvdd = 3.3v, t a = 25 o c unless otherwise mentioned
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 10 - 66 6.2 headphone output 6.2.1 general the headphone output is designed to provide the audio signal with 2x40mw @ 16 or 2x20mw @32 , which are typical values for headphones. this output stage has an independent gain regulation for left and right channel with 32 steps @ 1.5db each. the gain can be set from ? 43.43db to +1.07db. the maximum output power of 40mw @ 16 is achieved, by setting the mixer output to 1vp and using the gain of 1.07db. figure 3 headphone-output 6.2.2 phantom ground hpcm pin is the buffered hpgnd output. it can be used to drive the loads without external blocking capacitors between hpl / hpr and hpcm. if the load is between hpr / hpl and bvss, 100uf of de-coupling capacitors are needed. th e phantom ground can be switched off to save power if not needed. 6.2.3 no-pop function to avoiding click and pop noise during power-up and shutdown, the output is automatically set to mute when the output stage is disabled. hpgnd pin, which needs a 100nf capacitor outside, gets charged on power-up with 2ua to agnd=1.45v. after start-up the dc level of the following pins are the same: hpr=hpl= hpcm=hpgnd=agnd=1.45v. the start-up time before releasing mute is about 90ms. to avoid pop-noise 150ms discharging time of hpgnd after a shutdown, have to be waited before starting up again. 6.2.4 over-current protection this output stage has an over-current protection, which disables the output for 256ms or 512ms. this value can be set in the he adphone registers. the over-current protection limit of hpr and hpl pin is typical 145ma while hpcm pin has a 210ma threshold. if neede d, the over-current condition can also be signalled via an interrupt to the controlling microprocessor. 6.2.5 headphone detection with a control bit the headphone detection can be enabled. the detection is only working as long as the headphone stage is in p ower down mode and the load is applied between hpr / hpl and hpcm. the headphone detection can also trigger a corresponding interrup t. 6.2.6 power save options to save power, especially when driving 32 ohm loads, a reduction of the bias current can be selected. together with switching off the phantom ground this gives 4 possible operating modes. table 7 headphone power-save options hpcm_off ibr_hph idd_hph (typ.) load 0 0 2.2ma 16 ohm 1 0 1.5ma 16 ohm 0 1 1.5ma 32 ohm 1 1 1.0ma 32 ohm bvdd = 3.3v, t a = 25 o c unless otherwise mentioned
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 11 - 66 6.2.7 parameter table 8 power amplifier block characteristics symbol parameter notes min typ max unit r l output load stereo mode 16 ohm r l = 32 20 mw pout maximum output power r l = 16 40 mw a0 gain programmable nominal gain -43.43 1.07 db ? ax gain step-size 1.5 db gain step-precision 0.5 db psrr power supply rejection ratio 200hz-20khz, 720mvpp, r l = 16 90 db short current protection level 145 ma i out_pd i out power down hpgnd is forced high (>1v) -20 20 ua t power_up 90 ms snr signal to noise ratio 100 db mute attenuation 100 db bvdd = 3.3v, t a = 25 o c unless otherwise mentioned 6.2.8 register description to get an interrupt on an over-current event , the corresponding bit in the irq_enrd1 r egister (0x26h) has to be set. also the i nterrupt request for hp detection has to be set in this register. the power-save options are controlled via audioset3 register (0x16h). all other headphone driver settings are controlled by the following two registers. right headphone register (02h) table 9 hph_out_r register bit name description 7,6 hp_ovc_to speaker over current time out: 11: 0 ms 10: 512 ms 01: 128 ms 00: 256 ms 5 - - 4..0 hpr_vol volume settings for right headphone output, adjustable in 32 steps @ 1.5db 11111: 1.07 db gain 11110: -0.43 db gain .. 00001: -43.93db gain 00000: -45.43 db gain the register is r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 12 - 66 left headphone register (03h) table 10 hph_out_l register bit name description 7 hp_mute 0: normal operation 1: headphone output set to mute (mute is on during power-up) 6 hp_on 0: speaker stage not powered 1: power up headphone stage 5 hpdeton 0: no headphone detection 1: enable headphone detection 4..0 hpl_vol volume settings for left headphone output, adjustable in 32 steps @ 1.5db 11111: 1.07 db gain 11110: -0.43 db gain .. 00001: -43.93db gain 00000: -45.43 db gain the register is r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 13 - 66 6.3 speaker output 6.3.1 general the speaker output is designed to provide the stereo audio signal with 2x500mw @ 4 . this output stage has an independent gain regulation for left and right channel with 32 steps @ 1.5db each. the gain can be set from ? 40.5db to +6db. the maximum output power of 500mw @ 4 is achieved, by setting the mixer output to 1vp and using the gain of +6db. figure 4 speaker output 6.3.2 no-pop function bgnd pin, which needs a 100nf capacitor outside, gets charged on power-up to bvdd/2.to avoiding click and pop noise during powe r- up and shutdown, the output is automatically set to mute when the output stage is disabled. the start-up time before releasing mute is about 100ms. to avoid pop-noise the 150ms discharging time of spr / spl after a shut down (220f capacitor in stereo single ended mode assumed), have to be waited before starting up again. 6.3.3 over-current protection this output stage has an over-current protection, which disables the output for 0 to 512ms. this value can be set in the speake r registers. the over-current protection limit of spr and spl pin is typical 700ma. to get an interrupt on an over-current event, the corres ponding bit in the irq_enrd1 register (0x26h) has to be set. 6.3.4 power save options when driving > 4 , two power save options can be chosen. the output driver stage can be set to only 25% drive capacity, which will reduce the maximum output power. additionally the bia s currents can be reduced to 50% in 3 steps. table 11 speaker power-save options lsp_lp ibr_lsp idd_hph (typ.) load 0 00 8ma 4 ohm 1 00 2.8ma 16-32 ohm 1 01 2.4ma 16-32 ohm 1 10 1.9ma 16-32 ohm 1 11 1.5ma 16-32 ohm bvdd = 3.3v, t a = 25 o c unless otherwise mentioned
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 14 - 66 6.3.5 parameter table 12 speaker amplifier parameter symbol parameter notes min typ max unit stereo mode 4 ohm r l output load mono differential mode 8 ohm pout maximum output power r l = 8 , mono differential mode 1 w a0 gain programmable nominal gain -40.5 6 db ? ax gain step-size 1.5 db gain step-precision 0.5 db psrr power supply rejection ratio 200hz-20khz, 720mvpp, no load 75 db short current protection level 700 ma i out_pd i out power down bgnd is forced high (>1v) -20 20 ua t power_up 100 ms snr signal to noise ratio 100 db mute attenuation 100 db bvdd = 5v, t a = 25 o c unless otherwise mentioned 6.3.6 register description to get an interrupt on an over-current event , the corresponding bit in the irq_enrd1 r egister (0x25h) has to be set. changing t he bias current or the output driver strength is done via audioset2 register (0x15h). all other speaker driver settings are controlled by the following two registers. right speaker register (04h) table 13 lsp_out_r register bit name description 7,6 sp_ovc_to speaker over current time out: 11: 0 ms 10: 512 ms 01: 128 ms 00: 256 ms 5 - not used 4..0 spr_vol volume settings for right speaker output, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain the register is r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 15 - 66 left speaker register (05h) table 14 lsp_out_l register bit name description 7 sp_mute 0: normal operation 1: speaker output set to mute (mute is on during power-up) 6 sp_on 0: speaker stage not powered 1: power up speaker stage 5 - not used 4..0 spr_vol volume settings for left speaker output, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain the register is r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 16 - 66 6.4 microphone inputs (2x) 6.4.1 general AS3515 includes two identical microphone inputs. the blocks have differential inputs to a microphone amplifier with adjustable gain. this stage also includes an agc. the following volume control has an independent gain regulation for left and right channel with 32 steps @ 1.5db each. the gain can be set from ?40.5db to +6db. the stage is set to mute by default. if the microphone input is not enabled, the volume settings are set to their default values. changing of volume and mute control can only be done after enabling the input. figure 5 microphone input 6.4.2 agc the microphone amplifier includes an agc, which is limiting the signal to 1vp. the agc has 15 steps with a dynamic range of abo ut 29db. the agc is on by default but can be disabled by a microphone register bit. 6.4.3 supply & detection each microphone input generates a supply voltage of 1.5v above hphcm. the supply is designed for 2ma and has a 10ma current limit. in off mode the micsup terminal is pulled to avdd with 30kohm. a current of typically 50ua generates an interrupt to inf orm the cpu, that a circuit is connected. when using hphcm as headset ground the hph?stage gives the interrupt. after enabling the hph- stage through the cpu the microphone detection interrupt will follow. 6.4.4 remote control fast changes of the supply current of typically 500ua are detected as a remote button press, and an interrupt is generated. the n the cpu can start the measurement of the microphone supply current with the internal 10-bit adc to distinguish which button was pressed . as the current measurement is done via an internal resistor, only two buttons generating a current of about 0.5ma and 1ma can be detec ted. with this 1ma as microphone bias is still available.
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 17 - 66 6.4.5 parameter table 15 microphone inputs parameter symbol parameter notes min typ max unit a0 gain programmable gain -40.5 6 db ? ax gain step-size 1.5 db gain step-precision 0.5 db r inmic input resistance differential 15 kohm a mic 0 micamp_gain0 28 db a mic 1 micamp_gain1 34 db a mic 2 micamp_gain2 40 db softclip_agc_range 15*2.0 db attack_time 60 us release_time 120 ms v innom 0 nominal_input_voltage0 micingain = 0db, micamp_gain0 40 mvp v innom 1 nominal_input_voltage1 micingain = 0db, micamp_gain1 20 mvp v innom 2 nominal_input_voltage2 micingain = 0db, micamp_gain2 10 mvp snr signal to noise ratio 90 db mute attenuation 100 db microphone supply v micsup microphone supply voltage 0-2ma 2.95 v i miclim mic. supply current limit 10 ma i micdet mic. detection current 50 ua i remdet remote detection current 500 ua v noise voltage noise 5.7 uv bvdd = 3.3v, t a = 25 o c unless otherwise mentioned 6.4.6 register description enabling a microphone input is done via a control bit in the audio settings register (audioset1 register 0x14h). to get an interrupt on an microphone detection event, the corresponding bit in the irq_e nrd1 register (0x26h) ha s to be set, while a remote detection int errupt is controlled via irq_enrd2 register (0x27h) . all other microphone input settings are controlled by the following registers. right microphone registers (06h & 08h) table 16 mic1_r & mic2_r register bit name description 7 m1_agc_off m2_agc_off 0: automatic gain control enabled 1: automatic gain control disabled 6,5 m1_gain m2_gain 00: gain set to 28 db 01: gain set to 34 db 10: gain set to 40 db 11: gain set to tbd. 4..0 m1r_vol m2r_vol volume settings for right microphone input, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain the registers are r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 18 - 66 left microphone register (07h & 09h) table 17 mic1_l & mic2_l register bit name description 7 m1_sup_off m2_sup_off 0: microphone supply enabled 1: microphone supply disabled 6 m1_mute_off m2_mute_off 0: microphone input set to mute 1: normal operation 5 - not used 4..0 m1l_vol m2l_vol volume settings for left microphone input, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain the registers are r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 19 - 66 6.5 line inputs (2x) 6.5.1 general AS3515 includes two identical line inputs. the blocks can work in mono differential, 2x mono single ended or in stereo single e nded mode. the volume control has an independent gain regulation for left and right channel with 32 steps @ 1.5db each. the gain can be se t from ? 34.5db to +12db. the stage is set to mute by default. if the line input is not enabled, the volume settings are set to their de fault values. changing the volume and mute control can only be done after enabling the input. if using the inputs as mono differential, the volume setting for the right channel should be set to 0db. figure 6 line input 6.5.2 parameter figure 7 line input parameter symbol parameter notes min typ max unit a0 gain programmable gain -34.5 12 db ? ax gain step-size 1.5 db gain step-precision 0.5 db mute 49 kohm r inline input resistance min gain, single ended stereo 100 kohm snr signal to noise ratio 100 db mute attenuation 100 db bvdd = 3.3v, t a = 25 o c, fs=48khz unless otherwise mentioned 6.5.3 register description enabling a line-input is done via a control bit in the audio settings register (audioset1 register 0x14h). all other line input settings are controlled by the following registers. right line in registers (0ah & 0ch) table 18 line_in1_r & line_in2_r register bit name description 7,6 - 5 li1r_mute_off li2r_mute_off 0: right line input is set to mute 1: normal operation 4..0 li1r_vol li2r_vol volume settings for right line input, adjustable in 32 steps @ 1.5db 11111: 12 db gain 11110: 10.5 db gain .. 00001: -33 db gain 00000: -34.5 db gain the registers are r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 20 - 66 left line in register (0bh & 0dh) table 19 line_in1_l & line_in2_l register bit name description 7,6 li1_mode li2_mode single ended stereo or differential mono selection 00: inputs switched to single ended stereo 01: inputs switched to differential mono 10: inputs switched to single ended mono 11: tbd. 5 li1l_mute_off li2l_mute_off 0: left line input is set to mute 1: normal operation 4..0 li1l_vol li2l_vol volume settings for left microphone input, adjustable in 32 steps @ 1.5db 11111: 12 db gain 11110: 10.5 db gain .. 00001: -33 db gain 00000: -34.5 db gain the registers are r/w; default value is 00h
AS3515 v15 austria micro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 21 - 66 6.6 digital audio interface 6.6.1 input digital audio data can be fed into the AS3515 via the i2s interface these input data are then used by the 18-bit dac to generat e the analog audio signal. the volume control has an independent gain regulation for left and right channel with 32 steps @ 1.5db each. the gain can be se t from ? 40.5db to +6db. the stage is set to mute by default. if the dac input is not enabled, the volume settings are set to their defa ult values. changing the volume and mute control can only be done after enabling the input. 6.6.2 output this block consists of an audio multiplexer where the signal, which should be recorded, can be selected. the output is then fed through a volume control to the 14 bit adc. the digital output is done via an i2s interface. the volume control has an independent gain regulation for left and right channel with 32 steps @ 1.5db each. the gain can be se t from ? 34.5db to +12db. the stage is set to mute by default. if the adc output is not enabled, the volume settings are set to their de fault values. changing the volume and mute control can only be done after enabling the input. the i2s output uses the same clocks as the i2s input. the sampling rate therefore depends also on the input sampling rate. 6.6.3 signal description the digital audio interface uses the standard i2s format: ? left justified ? msb first ? one additional leading bit the first 18 bits are taken for dac conversion. the on-chip synchronization circuit allows any bit-count up 32bit. when there a re less than 18 bits sampled, the data sample is completed with ?0?s. the adc output is always 16 bit. if more sclk pulses are provided, onl y the first 16 will be significant. all following bit will be ?0?. sclk has not to be necessarily synchronous to lrck but the high going edge has to be separate from lrck edges. the lrck signal has to be derived from a jitter-free clock source, because the on-chip pll is generating a clock for the digital filter, which has to be always in correct phase lock condition to the external lrck. figure 8 i2s_timing 15 2 1 0 17 2 1 0 left channel 15 2 1 0 17 2 1 0 right channel lrck sclk sdo 16 bit sdi 18 bit t su t hd t s1 t s2 leading dummy bit according to i2s standard * * 6.6.4 power save options the bias current of the dac block can be reduced in three steps down to 50% to reduce the power consumption. 6.6.5 clock supervision the digital audio interfac e automatically checks the lrck. an interrupt can be generated when the state of the lrck input chang es. a bit in the interrupt register represents the actual state (present or not present) of the lrck.
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 22 - 66 6.6.6 parameter table 20 dac/adc block parameter symbol parameter notes min typ max unit programmable gain dac input -43.43 1.07 db a0 gain programmable gain adc output -34.5 12 db ? ax gain step-size 1.5 db gain step-precision 0.5 db mute attenuation 100 db i2s inputs / outputs v il sclk, lrck, sdi (30%dvdd/2) - - 0.42 v v ih sclk, lrck, sdi (70%dvdd/2) 1.02 - dvdd v v ol sdo @ 2ma - - 0.3 v v oh sdo @ 2ma 2.6 - - v t su set-up time sdi versus high going edge of sclk 80 ns t hd hold time sdi versus high going edge of sclk 80 ns t s1, t s2 separation time sclk high going edges separation from lrck edges 80 ns t jitter clock jitter lrck -20 20 ns bvdd = 3.3v, dvdd = 2.9v, t a = 25 o c unless otherwise mentioned 6.6.7 register description enabling the dac or adc is done via a control bit in the audio settings register (audioset1 register 0x14h). to get an interru pt on a lrck state change, the corresponding bit in the irq_enrd1 register (0x2 5h) has to be set. changing the bias current and adding a dit her signal is done via audioset2 register (0x15h). all other dac or adc settings are controlled by the following two registers. right dac register (0eh) table 21 dac_r register bit name description 7..5 - 4..0 dar_vol volume settings for right dac input, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain the register is r/w; default value is 00h left dac register (0fh) table 22 dac_r register bit name description 7 - 6 dac_mute_off 0: dac input is set to mute 1: normal operation 5 - 4..0 dal_vol volume settings for left dac input, adjustable in 32 steps @ 1.5db 11111: 6 db gain 11110: 4.5 db gain .. 00001: -39 db gain 00000: -40.5 db gain the register is r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 23 - 66 right adc register (10h) table 23 adc_r register bit name description 7,6 adcmux 00: stereo microphone 01: line_in1 10: line_in2 11: audio sum 5 - 4..0 adr_vol volume settings for right adc input, adjustable in 32 steps @ 1.5db 11111: 12 db gain 11110: 10.5 db gain .. 00001: -33 db gain 00000: -34.5 db gain the register is r/w; default value is 00h left adc register (11h) table 24 adc_l register bit name description 7 ad_fs2 divider selection for adc clock 0: adc sample clock is i2s lrck / 2 1: adc sample clock is i2s lrck / 4 6 adc_mute_off 0: adc input is set to mute 1: normal operation 5 - 4..0 adl_vol volume settings for left adc input, adjustable in 32 steps @ 1.5db 11111: 12 db gain 11110: 10.5 db gain .. 00001: -33 db gain 00000: -34.5 db gain the register is r/w; default value is 00h pll mode register (1dh) table 25 pllmode register bit name description 7..3 - not used 2,1 pllmode<1:0> sets the mclk generation for different lrck speeds: 00: lrck: 24-48khz 01: reserved 10: lrck: 8-23khz 11: reserved 0 - not used the register is r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 24 - 66 6.7 audio output mixer 6.7.1 general the mixer stage sums up the audio signals of the following stages ? m icrophone input 1 ? m icrophone input 2 ? l ine input 1 ? l ine input 2 ? di gital audio input (dac) the mixing ratios have to be with the volume registers of the corresponding input stages. please be sure that the input signals of the mix er stage are not higher than 1vp. if summing up several signals, each has of course to be lower. this shall insure that the output signal is also not higher than 1vp to get a proper signal for the output amplifier. this stag e has an automatic gain control, which automatically avoids clipping. 6.7.2 agc the audio mixer includes an agc, which is limiting the signal to 1vp. the agc has 12 steps with a dynamic range of about 18db. the agc is on by default but can be disabled by a register bit. 6.7.3 register description the mixer stage has no direct associated registers. enabling the summing / mixer stage is done via a control bit in the audio settings register (audioset1 register 0x14h). disabli n g the agc is done via audioset2 register (0x15h). ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 25 - 66 6.8 audio settings 6.8.1 register description first audioset register (14h) table 26 audioset1 register bit name description 7 adc_on 1: adc for recording is enables 0: adc disabled 6 sum_on 1: summing / mixing stage is enabled 0: summing / mixing stage is disabled (no audio output possible) 5 dac_on 1: dac enabled 0: dac disabled 4 lout_on 1: line output enabled 0: line output disabled 3 lin2_on 1: line input 2 enabled 0: line input 2 disabled 2 lin1_on 1: line input 1 enabled 0: line input 1 disabled 1 mic2_on 1: microphone input 2 enabled 0: microphone input 2 disabled 0 mic1_on 1: microphone input 1 enabled 0: microphone input 1 disabled the register is r/w; default value is 00h second audioset register (15h) table 27 audioset2 register bit name description 7 bias_off 1: bias disabled 0: bias enabled 6 dith_off 1: no dither added 0: add dither to the audio stream 5 agc_off 1: automatic gain control for summing stage disabled 0 : automatic gain control for summing stage enabled 4,3 ibr_dac<1:0> bias current reduction settings for dac: 00: 0% 01: 25% 10: 40% 11: 50% 2 lsp_lp low power mode for speaker output: 1: speaker output driver set for 16ohm load or more (25%) 0: speaker output driver set for 4ohm to 16ohm load (100%) 1,0 ibr_lsp<1:0> bias current reduction settings for speaker output: 00: 0% 01: 17% 10: 34% 11: 50% the register is r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 26 - 66 third audioset register (16h) table 28 audioset3 register bit name description 7..3 - not used 2 zcu_off zero cross gain update of audio outputs 1: zero cross update disabled 0: zero cross update enabled 1 ibr_hph bias current reduction settings for headphone output: 1: headphone output driver set for 32ohm load or more (68%) 0: headphone output driver set for 16ohm load (100%) 0 hpcm_off headphone common mode buffer settings: 1: headphone cm buffer is switched off 0: headphone cm buffer is switched on the register is r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 27 - 66 6.9 3v step-up converter 6.9.1 general ? output voltage 3v to 3.6v (bvdd) programmable in 4 steps via dcdc3p bit to save power ? i nput voltage 1v (1.2v) to 3v, voltages higher than that can be connected to bvdd directly ? ma ximum output current to bvdd: 150ma ? cu rrent mode operation ? on -chip compensation and feedback network ? on chip 300m ? nmos switch ? pwm mode with 1.2mhz switching frequency ? i nductor current limitation 850ma ? pul se skipping capability ? l ow quiescent current: 40 a in pfm-mode, 300 a in pwm mode ? 1 a s hutdown current ? u ses external coil (6.8uh) and schottky diode (500ma) figure 9 dcdc block diagram oscillator 1.2mhz ramp generation nmos power device 300m + - error amplifier current sense pwm-logic + - pulse skipping logic vbat pwr_gnd comparator vss vref 1.6v sw dcdc step up endcdc 1m 1m pwr_up vss3 sw3 bvdd vss ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 28 - 66 6.9.2 parameter table 29 dcdc boost parameter symbol parameter notes min typ max unit power down mode 5 a pfm mode operation 40 a i vdd2.9 supply current pwm mode (low output load) 300 a v startup minimum startup voltage r load >220 ? 1.0 v v hold hold-on voltage i out =1ma, vbat falling from 1.5 to 0v 0.5 v r sw_on internal switch r ds_on 300 m? start-up, x3vok=1 100 250 500 khz f sw switching frequency pwm mode operation, x3vok=0 0.9 1.2 1.42 mhz t on_min minimum on-time 100 ns t off_min minimum off-time 100 ns i out =20ma, vin=1.35 85 % eff efficiency i out =50ma, vin=1.5 87 % i sw_lim current limit 1.0v vb1 v 3.0v 0.85 a i out maximum load current vb1v=1.0v 150 ma v out output voltage ripple i out =100ma in 100 s tbd. mv vin=1.0..2.0v, c(vbat) = 2.2 f ceramic || 2000 f elko, c(vreg) = 3 x 2.2 f ceramic, l=ds1608 4.7 h, temp = 25deg figure 10 dcdc boost typical performance characteristics 60,0 65,0 70,0 75,0 80,0 85,0 90,0 1 10 100 1000 iout [ma] eff. [%] 1,5v 1,35v 1,25v 1,1v 0,9v bvdd=3.1v, l=ds1608 4.7 h, te mp = 25deg ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 29 - 66 6.10 low drop out regulators 6.10.1 general these ldo?s are designed to supply sensitive analogue circuits, audio devices, ad and da converters, micro-controller and other peripheral devices. the design is optimised to deliver the best compromise between quiescent current and regulator performance for battery powered dev ices. stability is guaranteed with ceramic output capacitors of 1 f +/ -20% (x5r) or 2.2 f +100/-50% (z5u). the low esr of these caps ensures low output impedance at high frequencies. regulation performance is excellent even under low dropout conditions, when t he power transistor has to operate in linear mode. power supply rejection is high enough to suppress high ripple on the battery at the output. the low noise performance allows direct connection of noise sensitive circuits without additional filtering networks. the low i mpedance of the power device enables the device to deliver up to 150ma even at nearly discharged batteries without any decrease of performa nce. figure 11 ldo block diagram vref 1.8v low noise dc reference high gain low bandwidth amplifier low gain ultra high bandwidth amplifier pmos power device 1 max. vbat 3v-5.5v vout 1.85-3.4v 150ma load 1 f z5u external gnd c_comp (internal) vout 1.7 - 3.56v 200ma load bvdd 3-5.5v 6.10.2 ldo1 this ldo generates the analog supply voltage used for the AS3515 itself. ? i nput voltage is bvdd ? ou tput voltage is avdd (typ. 2.9v) 6.10.3 ldo2 this ldo generates the digital supply voltage used for the AS3515 itself, microprocessor peripheral supply and external components like sd-cards, nand-flashes, fm-radio? ? i nput voltage is bvdd ? out put voltage is dvdd (typ. 2.9v) ? dri ver strength: 200ma 6.10.4 ldo3 this ldo will be used to supply the periphery voltage for a microprocessor. ? i nput voltage bvdd ? ou tput voltage is pvdd 1.7 to 3.3v ? dri ver strength: 200ma ? prog rammable via p_pvdd pin and pvddp bit in 8 steps ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 30 - 66 table 30 pvdd programming p_pvdd pvddp=0 pvddp=1 vss off off 150k to vss 2.50v 2.36v open 3.33v 3.15v 150k to dvdd 2.90v 2.74v dvdd 1.80v 1.70v 6.10.5 ldo4 this ldo will be used to supply peripheral circuits. default value is 3.3v, but it can be manually programmed to 3.1v if needed . ? i nput voltage bvdd ? ou tput voltage is cpvdd (3.1 or 3.3) ? prog rammable via cpvddp bit. ? dri ver strength: 200ma 6.10.6 parameter table 31 ldos block characteristics symbol parameter notes min typ max unit r on on resistance 1 ? f=1khz 70 db psrr power supply rejection ratio f=100khz 40 i off shut down current 100 na i vdd supply current without load 50 a noise output noise 10hz < f < 100khz 50 v rms t start startup time 200 s v out_tol output voltage tolerance -50 50 mv ldo1, static <1 v linereg line regulation ldo1, transient;slope: t r =10 s <10 mv ldo1, static <1 v loadreg load regulation ldo1, transient;slope: t r =10 s <10 mv i limit current limitation ldo1, ldo2, ldo3, ldo4 400 ma bvdd=4v; i load =150ma; t amb =25oc; c load =2.2 f (ceramic); unless otherwise specified ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 31 - 66 figure 12 ldo typical performance characteristics load regulation of ldo1 transient load: 1ma ? 100ma slope: 1 s output noise of ldo1 output load: 150ma ldo1 output load: 10ma transient input voltage ripple: 500mv ldo1 output load: 150ma transient input voltage ripple: 500mv ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 32 - 66 6.11 charge-pump step-down converter 6.11.1 general this converter will be used to supply the core voltage for a microprocessor. ? i nput voltage cpvdd ? ou tput voltage 0.85 to 1.8 v ? vol tage setting via p_cvdd and cvddp<1:0> bits in 16 steps ? re gulated 2:1 charge pump with pulse skipping ? sca leable switches according to bvdd ? bypa ss ldo for higher currents or lower battery voltages respectively ? dri ver strength: 50ma / 200ma with bypass ldo figure 13 charge pump block diagram mode_1 vbat length reg. mode_2 cpvdd length reg. mode_3 chpump length reg. charge-pump with ext. c-fly 500khz 2u2f 330nf ldo4 3.56v clamp cn cp cvdd cpvdd bvdd vb1v 2u2f cvdd regulator 6.11.2 functional description to reduce the power consumption when using cvdds below 1.8v, cpvdd is automatically set to 3.3v and can be further reduced to 3.1v if needed. table 32 cvdd programming cpvdd p_cvdd cvdd cpvddp=0 cpvddp=1 vss off 3.3v 3.1v 150k to vss 1.0v 3.3v 3.1v open 1.2v 3.3v 3.1v 150k to dvdd 1.5v 3.3v 3.1v dvdd 1.8v 3.56v 3.56v additional the cvdd voltage can be trimmed with two register bits in the range of 0mv to -150mv ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 33 - 66 table 33 cvdd trimming cvddp<1:0> cvdd 0 0 vnom (s ee ) 0 1 vnom ? 50mv 1 0 vnom - 1 00mv 1 1 vnom - 1 50mv this gives 0.85v to 1.8v as total range of the cvdd voltage. table 34 cvdd programming range p_cvdd cvddp=11 cvddp=10 cvddp=01 cvdd=00 vss off off off off 150k to vss 0.85v 0.90v 0.95v 1.00v open 1.15v 1.10v 1.15v 1.20v 150k to dvdd 1.35v 1.40v 1.45v 1.50v dvdd 1.65v 1.70v 1.75v 1.80v three different functional paths generate cvdd: 1. di rect length regulation from vb1v mode1=true if ((vnom+vmargin1) < vb1v < (vth1)) && (nousb) vmargin1=50mv/150mv (100mv hysteresis) vth1=1.7v/1.8v (100mv hysteresis) ? vba t ldo is used when vb1v>(vnom+50mv) because length reg. is a 1ohm device. ? vbat ldo is used when vb1v<(1.8v) since mode1 is efficient just with single battery cell. ? vba t ldo is not used when there is high supply present from usb even when vb1v is in range. ? (th ere is no dependency on charger_in needed because with a charger a 4v liio battery is used anyway) 2. di rect length regulation from cpvdd mode2=true if ((not mode1) && (cp vdd < (vnom+vmargin2))) vmargin2=200mv/300mv (100mv hysteresis) ? cpvdd ldo is used when vbat ldo mode1 is not entered and ? cpvdd i s not high enough to do 2:1 charge-pump regulation. 3. charge-p ump cpvdd division by 2 active plus length regulation mode3=true if ((not mode1) && (not mode2)) ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 34 - 66 6.11.3 parameter table 35 cvdd charge pump parameter symbol parameter notes min typ max unit v out regulated output voltage 0.85 1.8 v v out_tol output voltage tolerance -50 50 mv cp mode 50 ma i load maximum load current ldo mode 200 i limit current limitation ldo mode 400 ma figure 14 cvdd charge pump typical performance characteristics cvdd charge pump regulation to 1.2v 1,05 1,1 1,15 1,2 1,25 1,3 0 50 100 150 200 250 i_cvdd [ma] v_cv dd [v ] h cvdd lengh regulation to 1.2v 1 1,05 1,1 1,15 1,2 1,25 0 50 100 150 200 250 300 350 400 i_cvdd [ma] v_cv dd [v ] bvdd= 2.8v bvdd= 3.0v bvdd= 3.2v bvdd= 3.4v bvdd= 3.6v bvdd= 3.0v bvdd= 3.2v bvdd= 3.4v bvdd= 3.6v ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 35 - 66 6.12 system 6.12.1 general the system block handles the power up and power down of the AS3515. 6.12.2 power up the AS3515 powers up when on of the following condition is true: ? hi gh signal on the pwr_up pin (>80ms, >1v) ? i nput voltage on the uvdd pin (usb pl ug in: >80ms, bvdd>3v, uvdd>4.5v) ? i nput voltage on the chg_in pin (charger plug in: >80ms, bvdd>3v, chg_in>4.0v) to hold the chip in power up mode t he pwruphld bit in the system register (0x20h)is set. 6.12.3 power down the chip automatically shuts off if one of the following conditions arises: ? cl earing the pwruphld bit in system register (0x20h) ? i 2c watchdog power down if enabled ? bvdd drop s below the minimum threshold voltage (2.6v) ? ju nction temperature reaches maximum threshold, set in supervisor register (0x24h) ? hi gh signal on the pwr_up pin for more than 11s. figure 15 power up timing power up from pwrup, chg_in, uvdd or rtcsup pin bvdd rising with vbat1 supply (dcdc3v) vref, iref rising with vdd_bandgap qldo1 & 2 avdd & dvdd for internal supply enable startup sequence en ldo2 + dcdc start sequencer with 1.2 mhz clock vref=ok qldo2=ok enable pvdd enable cvdd +50ms +52ms +54ms powergood = xres +56ms enable cpvdd ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 36 - 66 6.12.4 parameter table 36 system block characteristics symbol parameter notes min typ max unit dvdd_por_off 2.15 v dvdd_por_on 2.0 v por_on/off_hyst 100 mv lrck watchdog f(lrck)_wd_off 2 4.1 8 khz on_delay 50 us digital outputs v ol irq, pwgood @ 8 ma - - 0.3 v v oh irq @ 8 ma, push/pull mode only 2.6 - - v ipullup irq, pwgood 10 ua bvdd = 3.3v, dvdd = 2.9v, t a = 25 o c unless otherwise mentioned 6.12.5 register description system register (20h) table 37 system register bit name description 7..4 version <3:0> unique number to identify the design version 0101: revision 6 3 pvddp pvdd trimming: 0: vnom 1: vnom *17/18 2 cpvddp cpvdd trimming: 0: vnom 3.3 or 3.56v depending on cvdd 1: 3.1v if cvdd is 1.5v or smaller 1 enwdogpwdn 0: forced power down through watchdog is disabled 1: forced power down through watchdog is enabled 0 pwruphld 0: power up hold is cleared and supply is switched off 1: set to on after power on the register is r/w (bits 7 to 4 are read only); default value is 21h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 37 - 66 cvdd / dcdc3 register (21h) table 38 cvdd / dcdc3 register bit name description 7 cp_sw charge pump / length regulator switch margin reduction 0: margin set to 200/300 mv 1: margin reduced to 150/225 mv (automatic switching to length regulator is done ?later?, at a lower input voltage) 6 cp_on 0: normal operation 1: keeps mode 3 charge pump always on please note that bit 2 = ?0?, overrides bit 6. 5 lreg_cpnot write: for testing purpose only, must be set to 0h read: 0: cp is working 1: lreg is working 4,3 dcdc3p dcdc3 vout pr ogramminig 00: 3.6v 01: 3.2v 10: 3.1v 11: 3.0v 2 lreg_off 0: keeps mode 2 length regulator always on 1: normal operation 0,1 cvddp1 cvdd trimming: 00: vnom 01: vnom ?50mv 10: vnom ?100mv 11: vnom ? 150mv the register is r/w; default value is 20h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 38 - 66 6.13 charger 6.13.1 general this block can be used to charge a 4v li-io accumulator. it supports constant current and constant voltage charging modes with adjustable charging currents (50 to 400ma) and maximum charging voltage (3.9 to 4.25v). 6.13.2 trickle charge if the battery voltage is below 3v, the charger goes automatically in trickle charge mode with 50ma charging current and 3.9v e ndpoint voltage. in this mode charging current and voltage are not precise, but provide a charger function also for deep discharged bat teries. also the temperature supervision 6.13.3 temperature supervision this charger block also features a supply for an external 100k ntc resistor to measure the battery temperature while charging. if the temperature is too high, an interrupt can be generated. 6.13.4 parameter table 39 charger parameter symbol parameter notes min typ max unit i chg_trick charging current (tr ickle charge) bvdd<=3v, chg_in = 4.5v - 5.5v 25 50 100 ma v chg_trick charger endpoint voltage (tr ickle charge) bvdd<=3v, chg_in = 4.5v 0.72* chg_in 4.1 v i chg (0-7) charging current bvdd > 3v, i chg = 150 ? 400ma i nom -20% i nom i nom +20% ma v chg (0-7) charging voltage bvdd > 3v, end of charge is true v nom -60mv v nom v nom +30mv v v on_abs charger on voltage irq bvdd = 3v 3.1 4.0 v v on_rel charger on voltage irq chg_in-chg_out 170 240 mv v off_rel charger off voltage irq chg_in-chg_out 40 77 mv v batemp_on battery temp. high level bvdd >3v 380 400 420 mv v batemp_off battery temp. low level bvdd >3v 480 500 520 mv i chg_off end of charge current level bvdd >3v 10% i nom ma i rev_off reverse current shut down chg_o u t = 5v, chg_in = vss <1 ua bvdd=3.6v; t amb =25oc; unless otherwise specified ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 39 - 66 6.13.5 register description end of charge and battery over-temperature interrupts can be generated with the corresp onding bits in the irq_enrd0 register (0 x25h). also the status of the charger (supply present or not) can be monitored via this register and if needed an interrupt is generat ed on a status change. all other charger functions are controlled in the following register. charger register (22h) table 40 charger register bit name description 7 tmpsup_off 0: enables supply for ex t ernal 100k ntc resistor 1: disables supply 6..4 chg_i set maximum charging current 111: 400 ma 110: 350 ma .. 001: 100 ma 000: 50 ma 3..1 chg_v set maximum charger voltage 111: 4.25 v 110: 4.2 v .. 001: 3.95 v 000: 3.9 v 0 chg_off 0: enables charger 1: disables charger the register is r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 40 - 66 6.14 15v step-up converter 6.14.1 general the integrated step-up dc/dc converter is a high efficiency current-mode pwm regulator, providing an output voltage up to 15v. a constant switching-frequency results in a low noise on supply and output voltages. it has an adjustable sink current (1.25 to 38.75ma) to provide e.g. dimming function when driving white leds as back-light. figure 16 15v step-up converter block diagram bvdd 0.83v 1.33v pwm-logic driver ramp generatio n isink vss15 sw15 nmos 15v power device 0.85 typ. current sense pulse-skip comparator error amplifier clock generation vss vss15 1.25 - 37.5 ma 6.14.2 parameter table 41 15v step-up converter parameter symbol parameter notes min typ max unit v sw high voltage pin pin sw15 0 15 v i vdd quiescent current pulse skipping mode 140 a v fb feedback voltage, transient pin isink 0 5.5 v v fb feedback voltage, during re gulation pin isink 0.83 v i sw_max current limit v15_on = 1 510 ma r sw switch resistance v15_on = 0 0.85 i load load current @ 15v output voltage 0 38.75 ma v pulseskip pulse-skip threshold voltage at pin isink, pulse skips are i ntroduces when load current becomes too low. 1.33 v f in fixed switching frequency 0.6 mhz c out output capacitor ceramic 1 f l (inductor) i load > 20ma use inductors with small c parasitic (<100pf) for high efficency 17 22 27 h i load < 20ma 8 10 27 ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 41 - 66 symbol parameter notes min typ max unit t min_on minimum on-time 90 180 ns mdc maximum duty cycle guaranteed per design 88 91 94 % bvdd=3.6v; t amb =25oc; unless otherwise specified figure 17 15v step-up performance characteristics 6.14.3 register description all functions can be controlled via the following register. dcdc15 register (23h) table 42 dcdc15 register bit name description 7..5 reserved for testing purpose only, must be set to 0h 4..0 i_v15<4..0> defines the current through the led = 1.25ma * i_v15 00000: off 00001: 1.25ma 00010: 2.5ma .. 11110: 37.5ma 11111: 38.75ma the register is r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 42 - 66 6.15 supervisor 6.15.1 general this supervisor function can be used for automatic detection of bvdd brown out or junction over-temperature condition. 6.15.2 bvdd supervision the supervision level can be set in 8 steps @ 60mv from 2.74 to 3.16v. if the level is reached an interrupt can be generated. i f bvdd reaches 2.6v the AS3515 shuts down automatically. 6.15.3 junction temperature supervision the temperature supervision level can also be set by 5 bits (120 to ?15 o c). if the temperature reaches this level, an interrupt can be generated. the over-temperature shutdown level is always 20 o c higher. if the irq level is set to 120 o c the shutdown is disabled. 6.15.4 register description interrupts for battery supervision has to be enabled in the irq_enrd0 register (0x2 5h), while the over-temperature interrupt is controlled via the irq_enrd1 register (0x26h). all other fu nctions can be set via the followin g register. supervisor register (24h) table 43 supervisor register bit name description 7..5 bvdd_sup<2:0> supervision of bvdd brown out v_brownout=2.74+x*60mv 000: 2.74v 001: 2.80v ? 110: 3.10v 111: 3.16v 4..0 jt_sup<4:0> junction temperature supervision: temp_shutdown=140-x*5 c temp_irq=120-x*5 c jt_sup irq 00000 00001 00010 : 11110 11111 120 o c 115 o c 110 o c : -30 o c -35 o c shutdown off 135 o c 130 o c : -10 o c -15 o c the register is r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 43 - 66 6.16 interrupt generation 6.16.1 general all interrupt sources can get enabled or disabled by corresponding bits in the 3 irq-bytes. by default no irq source is enabled . the irq output can get configur ed to be push/pull or open_dra in and active_high or active lo w with 2 bits in irq_enrd2 register (0x27h). default state is push/pull and active_high. 6.16.2 irq source interpretation there are 3 different modules to process interrupt sources: level the irq output is kept active as long as the interrupt source is present and this irq-bit is enabled edge the irq gets active with a high going edge of this source. the irq stays active until the corresponding irq-register gets read. status change the irq gets active when the source-state changes. the change bit and the status can be read to notice which interrupt was the source. the irq stays active until the corresponding interrupt register gets read. 6.16.3 de-bouncer there is a de-bouncer function implemented for usb and charger. since these 2 signals can be unstable for the phase of plug-in or unplug, a de-bounce time of 512ms/256ms /128ms/0ms can be selected by 2 bits in the irq_enrd2 register (0x27h). 6.16.4 register description first interrupt register (25h) table 44 irq_enrd0 register bit name int. type description 7 chg_tmphigh level 1: battery temperature was too high and the charger was turned off 6 chg_endofch edge 1: charging is complete, turn charger off after turning off the charger, irq will be released. 5 chg_status 1: charger connected, also valid if charger is connected during wakeup 4 chg_changed status change 1: charger status changed, check chg_status 3 usb_status 1: usb connected, also valid if usb is connected during wakeup 2 usb_changed status change 1: usb status changed, check ub_status 1 rvdd_waslow level 1: if rtc supp l y was low, rtc not longer valid irq will be released by any i2c action. 0 bvdd_islow level 1:bvdd has reached brown out level the register is r/w; default value is 00h by writing to the register the corresponding interrupt is enabled, reading the register delivers the interrupt source. ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 44 - 66 second interrupt register (26h) table 45 irq_enrd1 register bit name int. type description 7 jtemp_high level 1: junction temperature has reached supervision level 6 lsp_overcurr level 1: lsp output is in over-current off mode 5 hph_overcurr level 1: hph output is in over-current off mode 4 i2s_status 1: lrck of i2s interface is present 3 i2s_changed status change 1: i2s lrck clock was started or stopped, check i2s_status 2 mic2_connect level 1: microphone was connected to mic port 2 irq will be released after enabling the microphone stage. detecting a microphone during operation has to be done by measuring the supply cu rrent. 1 mic1_connect level 1: microphone was connected to mic port 1 irq will be released after enabling the microphone stage. detecting a microphone during operation has to be done by measuring the supply cu rrent. 0 hph_connect level 1: headphone was connected to hhp port irq will be released after enabling the headphone output. detecting a headphone during operation is not possible. the register is r/w; default value is 00h by writing to the register the corresponding interrupt is enabled, reading the register delivers the interrupt source. third interrupt register (27h) table 46 irq_enrd2 register bit name int. type description 7..6 t_deb<1:0> - usb and charger de-bounce time control 00: 512ms 01: 256ms 10: 128ms 00: not defined 5 irq_acthigh - 1: irq is active high 0: irq is active low 4 irq_pushpull - 1: irq output is push pull 0: irq output is open drain 3 remote_det2 edge 1: mic2 supply current got increased, remote detection ? me asure mic2 supply current 2 remote_det1 edge 1: mic1 supply current got increased, remote detection ? me asure mic1 supply current 1 rtc_update edge 1: rtc timer irq occured 0 adc_endcon edge 1: 8-bit adc conversion completed the register is r/w; default value is 00h by writing to bit 0 to 3, the corresponding interrupt is enabled, reading these bits delivers the interrupt source. ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 45 - 66 6.17 real time clock 6.17.1 general the real time clock block is an independent block, which is still working even the AS3515, is shut down. the block uses a stand ard 32khz crystal that is connected to a low power oscillator. an internal 32bit second register stores the current time. the rtc block has special functions for trimming the time base and generating interrupts every second or minute. 6.17.2 rtc supply the internal rtc is supplied via the rtcsup pin. the block has an internal ldo to generate the rtc supply voltage on rvdd pin. this voltage can be programmed via the rtcv register (0x28h). if the internal rtc is not used, rvdd can be used to supply an externa l rtc block. if the supply voltage on rtcsup pin rises, the whole AS3515 gets powered up. 6.17.3 register description a rtcsup low condition can be sig nalled by an interrupt request, if the correspond ing bit in the irq_enrd0 register (0x25h) is set. to get a second or minute interrupt the enable bit in irq_enrd2 regi ster (0x27h) all other rtc func tions can be controlled and acc essed via the following registers. rtcv register (28h) table 47 rtcv register bit name description 7..4 vrtc<3..0> sets the rtc supply voltage, 16 steps @ 0.1v, default is 1.2v 0000: 1v 0001: 1.1v 0010: 1.2v ? 1110: 2.4v 1111: 2.5v 3,2 reserved for testing purpose only, must be set to 0h 1 rtc_on 0: disable clock for rtc 1: enables clock for rtc 0 osc_on 0: disables rtc oscillator 1: enables rtc oscillator the register is r/w; default value is 23h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 46 - 66 rtct register (29h) table 48 rtct register bit name description 7 irq_min 0: generates an interrupt every second 1: generates an interrupt every minute 6..0 trtc<6..0> trimming register for rtc, 128 steps @ 7.6ppm 000000: 1 (7.6ppm) 000001: 2 (15.2ppm) ? 100000: 64 (488ppm) ? 111110: 126 (960.8ppm) 111111: 127 (968.4ppm) the register is r/w; default value is 40h rtc registers (2ah to 2dh) table 49 rtc_0 to rtc_3 register addr name bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 description 2ah rtc_0 qrtc<7> qrtc<6> qrtc<5> qrtc<4> qrtc<3 > qrtc<2> qrtc<1> qrtc>0> second register 0 2bh rtc_1 qrtc<15> qrtc<14> qrtc<13> qrtc<12> qrtc <1 1> qrtc<10> qrtc<9> qrtc<8> second register 1 2ch rtc_2 qrtc<23> qrtc<22> qrtc<21> qrtc<20> qrtc<1 9> qrtc<18> qrtc<17> qrtc <1 6> second register 2 2dh rtc_3 qrtc<31> qrtc<30> qrtc<29> qrtc<28> qrtc<2 7> qrtc<26> qrtc<25> qrtc <2 4> second register 3 the registers are r/w; default value is 00h ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 47 - 66 6.18 10-bit adc 6.18.1 general this general purpose adc can be used for measuring several voltages and currents to perform functions like battery monitor, tem perature supervision, button press detection, etc.. 6.18.2 input sources table 50 adc10 input sources nr. source range lsb description 0 bvdd 5.120v 5mv check battery voltage of 4v liio accumulator 1 rtcsup 5.120v 5mv check rtc backup battery voltage 2 uvdd 5.120v 5mv check usb host voltage 3 chg_in 5.120v 5mv check charger input voltage 4 cvdd 2.560v 2.5mv check charge pump output voltage 5 battemp 2.560v 2.5mv check battery charging temperature 6 micsup1 2.560v 2.5mv check voltage on micsup1 for remote control or external voltage m easurement 7 micsup2 2.560v 2.5mv check voltage on micsup2 for remote control or external voltage m easurement 8 vbe1 1.024 1mv measuring junction temperature @ 2ua 9 vbe2 1.024 1mv measuring junction temperature @ 1ua 10 i_micsup1 2.048ma typ. 2.0ua check current of micsup1 for remote control detection 11 i_micsup2 2.048ma typ. 2.0ua check current of micsup2 for remote control detection 12 vb1v 2.560v 2.5mv check single cell battery voltage 13..15 reserved 1.024v 1mv for testing purpose only bvdd, rtcsup, uvdd, chg_in these sources are fed into an 1/5 voltage divider (180k typ.) and further amplified by 2.5. cvdd, battemp, micsup1, micsup2 these sources are fed directly to the adc input multiplexer. vbe1, vbe2 these inputs are first amplified by 2.5 and than fed to the adc input multiplexer. i_micsup1, i_micsup2 the measurement of the microphone supply ldos is not very accurate, as the current-voltage conversion is only done by a single resistor which shows wide process and temperature variations. these measurements should be only used for remote function detection. vb1v this source is divided by 2.5 with a voltage divider (180k typ.) and than amplified by 2.5. this has to be done, as vb1v can represent voltages up to 3.6v. please note, that the maximum measurement rage will be still 2.560v 6.18.3 reference avdd=2.9v is used as reference to the adc. avdd is trimmed to +/-20mv with over all precision of +/-29mv. so the absolute accur acy is +/-1%. ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 48 - 66 6.18.4 parameter table 51 adc10 parameter symbol parameter notes min typ max unit r div input divider resistance bv dd, r tcsup, uvdd, chg_in, vb1v 138k 180k 234k adc fs adc full scale range 2.534 2.56 2.586 v ratio1 division factor 1 bvdd, rtcsup, uvdd, chg_in 0.198 0.2 0.202 1 ratio2 division factor 2 vb1v 0.396 0.4 0.404 1 gain adc gain stage 2.475 2.5 2.525 v t con conversion time - 34 50 s i_mic fs i_micsup1/2 full scale range 1.4 2 2.8 ma bvdd=3.6v; t amb =25oc; unless otherwise specified 6.18.5 register description the conversion gets started by writing to the adc_0 register (0x2eh). after finishing the conversion an interrupt request can b e generated if the corresponding bit in the irq_enrd2 register (0x27h) is set. conv ersion source and result can be set / read with the foll owing two registers. adc_0 register (2eh) table 52 adc_0 register bit name description 7..4 adc_sour c e 0000: bvdd 0001: rtcsup 0010: uvdd 0011: chg_in 0100: cvdd 0101: battemp 0110: micsup1 0111: micsup2 1000: vbe_1ua 1001: vbe_2ua 1010: i_micsup1 1011: i_micsup2 1100: vb1v 1101: reserved 1110: reserved 1101: reserved 3,2 - not used 1 adc<9> adc result bit 10 0 adc<8> adc result bit 9 the register is r/w; default value is 000000xxb ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 49 - 66 adc_1 register (2fh) table 53 adc_1 register bit name description 7 adc<7> adc result bit 8 6 adc<6> adc result bit 7 5 adc<5> adc result bit 6 4 adc<4> adc result bit 5 3 adc<3> adc result bit 4 2 adc<2> adc result bit 3 1 adc<1> adc result bit 2 0 adc<0> adc result bit 1 the register is r/w; default value is xxh ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 50 - 66 6.19 128 bit fuse array 6.19.1 general this fuse array is used to store a unique identification number, which can be used for drm issues. the number is randomly gener ated and programmed during the production process. 6.19.2 register description uid registers (30h to 3fh) table 54 uid_0 to udi15_3 register addr name bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 description 30h uid_0 id<7> id<6> id<5> id<4> id<3> id<2> id<1> id<0> unique id byte 0 31h uid_1 id<15> id<14> id< 13> id<12> id<11> id<10> id < 9> id<8> unique id byte 1 32h uid_2 id<23> id<22> id<21> id<20> id<19> id<18> id<17> id<16> unique id byte 2 33h uid_3 id<31> id<30> id<29> id<28> id<27> id<26> id<25> id<24> unique id byte 3 34h uid_4 id<39> id<38> id<37> id<36> id<35> id<34> id<33> id<32> unique id byte 4 35h uid_5 id<47> id<46> id<45> id<44> id<43> id<42> id<41> id<40> unique id byte 5 36h uid_6 id<55> id<54> id<53> id<52> id<51> id<50> id<49> id<48> unique id byte 6 37h uid_7 id<63> id<62> id<61> id<60> id<59> id<58> id<57> id<56> unique id byte 7 38h uid_8 id<71> id<70> id<69> id<68> id<67> id<66> id<65> id<64> unique id byte 8 39h uid_9 id<79> id<78> id<77> id<76> id<75> id<74> id<73> id<72> unique id byte 9 3ah uid_10 id<87> id<86> id< 85> id<84> id<83> id<82> id< 81> id<80> unique id byte 10 3bh uid_11 id<95> id<94> id< 93> id<92> id<91> id<90> id< 89> id<88> unique id byte 11 3ch uid_12 id<103> id<102> id<101> id<100> id< 99> id<98> id<97> id<96> unique id byte 12 3dh uid_13 id<111> id<110> id<109> id<108> id<107> id<106> id<105> id<104> unique id byte 13 3eh uid_14 id<119> id<118> id<117> id<116> id<115> id<114> id<113> id<112> unique id byte 14 3fh uid_15 id<127> id<126> id<125> id<124> id<123> id<122> id<121> id<120> unique id byte 15 the register is read only. ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 51 - 66 6.20 vtrm-ldo 6.20.1 general this ldo is generating a supply voltage for an external usb 1.1 transceiver out of the 5v usb master supply. ? i nput voltage is uvdd (4.5 to 5.5v) ? out put voltage is vtrm (typ. 3.2v) ? dri ver strength: ~10ma ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 52 - 66 6.21 i2c control interface 6.21.1 general there is an i2c slave block implemented to have access to 64 byte of setting information. the i2c address is: adr_group8 - audioprocessors ? 8c h_write ? 8d h_read figure 18 i2c timing reset scl sda 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 a 8 7 6 5 4 3 2 1 a devicewriteaddress 8ch register address write data start stop condition condition 6.21.2 parameter table 55 i2c operating conditions symbol parameter notes min typ max unit vil cscl, csda (max 30%dvdd) 0 - 0.87 v vih cscl, csda (min 70 % dvdd) 2.03 - 5.5 v hyst cscl, csda 200 450 800 mv vol csda @ 3ma - - 0.4 v tsp spike insensitivity 50 100 - ns speed frequency at cscl - - 400 khz tsetup csda has to change tsetup before ri sing edge of cscl 250 - - ns thold no hold time needed for csda relative to rising edge of cscl 0 - - ns ts csda h hold time relative to csda e dge for start/stop/rep_start 600 - - ns tdata csda prop delay relative to lowgoing e dge of cscl 50 ns dvdd =2.9v, t amb =25oc; unless otherwise specified ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 53 - 66 6.21.3 register description registers overview (00h to 3fh) table 56 i2c register overview addr name d<7> d<6> d<5> d<4> d<3> d<2> d<1> d<0> reserved - lor_vol<4:0> gain from mixer_out to line_out= (-40.5db ? +6db) 00h line_out_r 0 0 0 0 0 0 0 0 lo_ses_dm<1:0> - lol_vol<4:0> gain from mixer_out to line_out= (-40.5db ? +6db) 01h line_out_l 0 0 0 0 0 0 0 0 hp_ovc_to<1:0> - hpr_vol<4:0> gain from mixer_out to hph_out= (-45.43db ? +1.07db) 02h hph_out_r 0 0 0 0 0 0 0 0 hp_mute hp_on hpdeton hpl_vol<4:0> gain from mixer_out to hph_out= (-45.43db ? +1.07db) 03h hph_out_l 0 0 0 0 0 0 0 0 sp_ovc_to<1:0> - spr_vol<4:0> gain from mixer_out to lsp_out= (-40.5db ? +6.0db) 04h lsp_out_r 0 0 0 0 0 0 0 0 sp_mute sp_on - spl_vol<4:0> gain from mixer_out to lsp_out= (-40.5db ? +6.0db) 05h lsp_out_l 0 0 0 0 0 0 0 0 m1_agc _off m1_gain<1:0> m1r_vol<4:0> gain from micamp_out to mixer_in= (-40.5db ? +6.0db) 06h mic1_r 0 0 0 0 0 0 0 0 m1_sup _off m1_mute _off - m1l_vol<4:0> gain from micamp_out to mixer_in= (-40.5db ? +6.0db) 07h mic1_l 0 0 0 0 0 0 0 0 m2_agc _off m2_gain<1:0> m2r_vol<4:0> gain from micamp_out to mixer_in= (-40.5db ? +6.0db) 08h mic2_r 0 0 0 0 0 0 0 0 m2_sup _off m2_mute _off - m2l_vol<4:0> gain from micamp_out to mixer_in= (-40.5db ? +6.0db) 09h mic2_l 0 0 0 0 0 0 0 0 - - li1r_ mute_off li1r_vol<4:0> gain from linein_pin to mixer_in=-34.5db+li1r_vol*1.5db (-34.5db ? +12db) 0ah line_in1_r 0 0 0 0 0 0 0 0 li1_mode<1:0> li1l_ mute_off li1l_vol<4:0> gain from linein_pin to mixer_in= (-34.5db ? +12db) 0bh line_in1_l 0 0 0 0 0 0 0 0 - - li2r_ mute_off li2r_vol<4:0> gain from linein_pin to mixer_in= (-34.5db ? +12db) 0ch line_in2_r 0 0 0 0 0 0 0 0 li2_mode<1:0> li2l_ mute_off li2l_vol<4:0> gain from linein_pin to mixer_in= (-34.5db ? +12db) 0dh line_in2_l 0 0 0 0 0 0 0 0 - - - dar_vol<4:0> gain from dac_out to mixer_in= (-40.5db ? +6db) 0eh dac_r 0 0 0 0 0 0 0 0 - dac_mute _off - dal_vol<4:0> gain from dac_out to mixer_in= (-40.5db ? +6db) 0fh dac_l 0 0 0 0 0 0 0 0 10h adc_r adcmux<1:0> - adr_vol<4:0> gain from adcmux_out to adc_in= (-34.5db ? +12db) ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 54 - 66 addr name d<7> d<6> d<5> d<4> d<3> d<2> d<1> d<0> 0 0 0 0 0 0 0 0 ad_fs2 adc_mute _off - adl_vol<4:0> gain from adcmux_out to adc_in= (-34.5db ? +12db) 11h adc_l 0 0 0 0 0 0 0 0 adc_on sum_on dac_on lout_on lin2_on lin1_on mic2_on mic1_on 14h audioset1 0 0 0 0 0 0 0 0 bias_off dith_off agc_off ibr_dac<1:0> lsp_lp ibr_lsp<1:0> 15h audioset2 0 0 0 0 0 0 0 0 - - - - - zcu_off ibr_hph hpcm_off 16h audioset3 0 0 0 0 0 0 0 0 - - - - - pllmode<2:0> - 1dh pll_mode 0 0 0 0 0 0 0 0 design_version<3:0> pvddp cvddp enwdogpw dn pwruphld 20h system 0 1 0 0 0 0 0 1 cp_sw cp_on lreg_ cpnot dcdc3p<1:0> lreg_off cvddp<1:0> 21h cvdd/dcdc3 0 0 1 0 0 0 0 0 tmpsup_ off chgi<2:0> chgv<2:0> chg_off 22h charger 0 0 0 0 0 0 0 0 for testing purpose only, must be set to 0h i_v15<4:0> 23h dcdc15 0 0 0 0 0 0 0 0 bvdd_sup<2:0> jt_sup<4:0> 24h supervisor 0 0 0 0 0 0 0 0 chg tmphigh chg endofch chg status chg changed usb status usb changed rvdd was low bvdd is low 25h irq_enrd0 0 0 0 0 0 0 0 0 jtemp high lsp overcurr hph overcurr i2s status i2s changed mic2 connect mic1 connect headph connect 26h irq_enrd1 0 0 0 0 0 0 0 0 t_deb<1:0> irq_acth igh irq_pushp ull remote_det 2 remote_d et1 rtc_updat e adc_endco n 27h irq_enrd2 0 0 0 0 0 0 0 0 vrtc<3:0> for testing purpose o nly, must be set to 0h rtc_on osc_on 28h rtcv 0 0 1 0 0 0 1 1 irq_min trtc<6:0> 29h rtct 0 1 0 0 0 0 0 0 qrtc<7:0> 2ah rtc_0 0 0 0 0 0 0 0 0 qrtc<15:8> 2bh rtc_1 0 0 0 0 0 0 0 0 qrtc<23:16> 2ch rtc_2 0 0 0 0 0 0 0 0 qrtc<31:24> 2dh rtc_3 0 0 0 0 0 0 0 0 adc_source<3:0> - - adc<9:8> 2eh adc_0 0 0 0 0 0 0 x x adc<7:0> 2fh adc_1 x x x x x x x x 30-3f uid_0 .. 15 id<7:0> ? id>127:120> ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 55 - 66 7 electrical specification table 57 audio parameter symbol parameter notes min typ max unit dac input to line output fs full scale output 1khz fs input 0.985 v rms snr signal to noise ratio a-weighted, no load, silence input 92 db dr dynamic range a-weighted, no load, -60db fs 1khz i nput 89 db thd total harmonic distortion 1khz fs input -90 db sinad signal to noise and distortion a-weighted, 1khz fs input 83 db line input to line output fs full scale output 1khz 1v rms (fs) input 0.95 v rms snr signal to noise ratio a-weighted, no load, silence input 93 db thd total harmonic distortion 1khz 1v rms (fs) input -85 db sinad signal to noise and distortion a-weighted, 1khz fs input 80 db cs channel separation 89 db dac input to hp output r l = 32 0.950 v rms fs full scale output r l = 16 0.944 v rms snr signal to noise ratio a-weighted, no load, silence input 94 db dr dynamic range a-weighted, no load, -60db fs 1khz i nput 90 db no load, 1khz fs input -90 db pout=20mw, r l = 32 , f=1khz fs input -73 db thd total harmonic distortion pout=40mw, r l = 16 , f=1khz fs input -66 db a-weighted, no load, 1khz fs input 84 db a-weighted,pout=20mw, r l = 32 , f=1khz fs input 73 db sinad signal to noise and distortion a-weighted,pout=40mw, r l = 16 , f=1khz fs input 66 -60 db r l = 32 73 db cs channel separation r l = 16 67 db line input to hp output r l = 32 , 1khz 1v rms (fs) input 0.930 v rms fs full scale output r l = 16 , 1khz 1v rms (fs) input 0.929 v rms snr signal to noise ratio a-weighted, no load, silence input 96 db dr dynamic range a-weighted, no load, -60db fs 1khz (fs) i nput 95 db no load, 1khz 1v rms input -85 db pout=20mw, r=32 , 1khz 1v rms (fs) input -75 db thd total harmonic distortion pout=40mw, r=16 , 1k hz 1v rms (fs) input -68 -60 db a-weighted, no load, 1khz 1v rms input 84 db a-weighted, pout=20mw, r=32 , 1khz 1v rms (fs) input 73 db sinad signal to noise and distortion a-weighted, pout=40mw, r=16 , 1 khz 1v rms (fs) input 68 db r l = 32 73 db cs channel separation r l = 16 68 db ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 56 - 66 dac to sp output r l = 32 , 1khz 1v rms (fs) input 1.036 v rms r l = 16 , 1khz 1v rms (fs) input 1.023 v rms fs full scale output r l = 4 , 1khz 1v rms (fs) input 0.950 v rms snr signal to noise ratio a-weighted, no load, silence input 91 db no load, 1khz 1v rms (fs) input -88 db r=32 , 1khz 1v rms (fs) input -78 db r=16 , 1khz 1v rms (fs) input -71 db r=4 , 1khz 1v rms (fs) input, bvdd=5v -60 db thd total harmonic distortion r=4 , 1 khz 0.7v rms (fs) input, bvdd=4v, bias reduction on -58 db a-weighted, no load, 1khz 1v rms (fs) input 85 db a-weighted, r=32 , 1khz 1v rms (fs) input 77 db a-weighted, r=16 , 1khz 1v rms (fs) input 71 db sinad signal to noise and distortion a-weighted, r=4 , 1khz 1 v rms (fs) input, bvdd=5v 60 db cs channel separation r l = 32 60 db mic input to adc output snr signal to noise ratio a-weighted, no load, silence input 81 db dr dynamic range a-weighted, no load, -60db fs 1khz i nput 80 db thd total harmonic distortion 1khz 27mv rms (-3db fs) input -62 db sinad signal to noise and distortion a-weighted, 1khz 27mv rms (-3db fs) input 61 db line input to adc output snr signal to noise ratio a-weighted, no load, silence input 83 db dr dynamic range a-weighted, no load, -60db fs 1khz i nput 82 db thd total harmonic distortion 1khz 1v rms (-3db fs) input -62 db sinad signal to noise and distortion a-weighted, 1khz 1v rms (-3db fs) input 61 db bvdd = 3.3v, t a = 25 o c, fs=48khz, r l = 10k unless otherwise mentioned ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 57 - 66 8 pinout and packaging 8.1 pin description table 58 pinlist ctbga64 & lqfp64 ctbga64 ball # lqfp64 pin # pinname type function a1 1 cvdd aout chargepump output for cpu supply progr. 0.85-1.8v b1 2 vb1v supply battery supply input for single cell application c3 3 cp ai/o chargepump flying cap c2 4 cn ai/o chargepump flying cap d2 5 vsscp supply chargepump neg. supply terminal c1 6 vss3 supply dcdc3v neg. supply terminal d1 7 sw3 aout dcdc3v switch terminal d4 8 sw15 aout dcdc15v switch terminal e1 9 vss15 supply dcdc15v neg. supply terminal d3 10 isink aout dcdc15v load current sink terminal e2 11 dvss supply digital circui t neg. suppl y terminal e3 12 battemp ai/o charger battery te mper ature sensor input (rntc 100k) f1 13 vtrm aout usb1.1 vtrm regulator output 3.25v f2 14 uvdd ain usb1.1 usb supply input g1 15 chgout aout charger output prog. ichg 50-400ma vchg 3.9-4.25v g2 16 chgin ain charger input h1 17 p_pvdd ain 5 state prog input of pvdd regulator h2 18 p_cvdd ain 5 state prog input of cvdd regulatro f3 19 pwr_up din pull_dn power up input g3 20 csda di/o pull_up data i/o of two wire interface g4 21 cscl din pull_up clock input of two wire interface h3 22 lrck din pull_dn i2s left/right clock h4 23 sclk din pull_dn i2s shift clock e4 24 sdi din pull_dn i2s data input to dac h5 25 sdo dout i2s data output from adc f4 26 pwgood dout goes high when powe r up sequence is completed (xres) g5 27 irq dout interrupt request output f5 28 dvdd supply digital circuit pos. suppl y terminal to be connected to qldo2 h6 29 xout ai/o 32khz rtc osci llator crystal terminal g6 30 rvdd aout rtc supply regulator output prog. to 1.0-2.5v h7 31 xin ai/o 32khz rtc oscillator crystal terminal g7 32 rtcsup supply rtc pos. supply terminal 5.5v max h8 33 mic1sup ai/o microphone supply 1 (2.95v) / remote input 1 g8 34 mic1n ain microphone input 1n f6 35 mic1p ain microphone input 1p f7 36 mic2p ain microphone input 2p e7 37 mic2n ain microphone input 2n f8 38 mic2sup ai/o microphone supply 2 (2.95v) / remote input 2 e8 39 lin1r ain line input 1 right channel e5 40 lin1l ain line input 1 left channel d8 41 lin2r ain line input 2 right channel e6 42 lin2l ain line input 2 left channel ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 58 - 66 ctbga64 ball # lqfp64 pin # pinname type function d7 43 agnd ai/o analog reference (avdd/ 2 ) decoupling cap terminal (10uf) d6 44 vref ai/o analog reference ( filter ed avdd ) decoupling cap terminal (10uf) c8 45 avss supply analog circuit neg supply terminal c7 46 lout_r aout line output right channel / ear piece diff output n b8 47 lour_l aout line output left channel / ear piece diff output p b7 48 avdd supply analog circuit pos. supply terminal a8 49 hpgnd ai/o headphone amplifier refer ence decoupling cap terminal (100nf) a7 50 bvss2 supply headphone amplifier neg. supply terminal c6 51 hph_cm aout headphone common gnd output for dc-coupled speakers b6 52 bvdd supply pos. supply terminal 5.5v max. b5 53 hph_r aout headphone output right channel a6 54 bvss2 supply headphone amplifier neg. supply terminal a5 55 hph_l aout headphone output left channel d5 56 bgnd ai/o loudspeaker amplifier refer ence decoupling cap terminal (100nf) a4 57 bvdd supply pos. supply terminal 5.5v max. c5 58 lsp_r aout loudspeaker output right channel b4 59 bvss supply loudspeaker amplifier neg. supply terminal c4 60 lsp_l aout loudspeaker output left channel a3 61 bvdd supply pos. supply terminal 5.5v max. b3 62 qldo2 aout ldo2 regulator output fixed 2.9v to be connected to dvdd a2 63 pvdd aout ldo3 regulator output prog. to 1.7-3.3v b2 64 cpvdd aout ldo4 regulator output limiter to 3.56v as chargepump input b2 64 cpvdd aout ldo4 regulator output limiter to 3.56v as chargepump input ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 59 - 66 8.2 ball & pin assignment 8.2.1 ctbga64 figure 19 ball assignment ctbga64 cvdd pvdd bvdd bvdd vb1v cpvdd qldo2 bvss hph_l bvss2 hph_r bvdd 12345678 a b c d e f g h bvss2 hpgnd avdd lout_l vss3 cn cp lsp_l sw3 vsscp isink sw15 lsp_r hph_cm bgnd vref lout_r avss agnd lin2r vss15 dvss battemp sdi vtrm uvdd pwr_up pwgood lin1l lin2l dvdd mic1p mic2n lin1r mic2p mic2sup chgout chgin csda cscl p_pvdd p_cvdd lrck sclk irq rvdd sdo xout rtcsup mic1n xin mic1sup ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 60 - 66 8.2.2 lqfp64 figure 20 pin assignment lqfp64 avdd lout_l lout_r avss vref agnd lin2l lin2r lin1l lin1r mic2sup mic2n mic2p mic1p mic1n mic1sup cvdd vb1v cp cn vsscp vss3 sw3 sw15 vss15 isink dvss battemp vtrm uvdd chgout chgin p_pvdd p_cvdd pwr_up csda cscl lrck sclk sdi sdo pwgood irq dvdd xout rvdd xin rtcsup cpvdd pvdd qldo2 bvdd lsp_l bvss lsp_r bvdd bgnd hph_l bvss2 hph_r bvdd hph_cm bvss2 hpgnd 1 17 33 49 ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 61 - 66 8.3 package drawings and marking 8.3.1 ctbga64 figure 21 ctbga64 marking table 59 package code aywwzzz a y ww pzz a ? for pb free year working week assembly/packaging free choice figure 22 ctbga64 7x7mm 0.8mm pitch ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 62 - 66 8.3.2 lqfp64 figure 23 lqfp64 marking table 60 package code aywwzzz a y ww szz a ? for pb free year working week assembly/packaging free choice figure 24 lqfp 10x10mm 0.5mm pitch ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 63 - 66 figure 25 reel specification ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 64 - 66 figure 26 ctbga64 tape specification tolerances ( except as no ted) deci mal 0. 1 fr ac ti onal ang ular - al ld i m ensions i nmi lli met er s- a dvant ek p artn um berb g 0707- d csp- 49 c ar ri ertape,a dv ts / ns tool draw n by reference no. scale date materi al draw ing no. rev no. descri pti on date by revi si ons 3: 1 see not e3 not es: 1.10 spr ockethol epi t ch cum ul at i ve t olerance . 02. 2.c am bernott o exceed 1m m i n 100m m . 3.m at er i al :ps + c . 4.a o and b o m easur edonapl ane 0. 3m m above t he bot t om oft he pocket 5.k o m easured f r om a pl ane on the i nsi de bot t om of t he pockett ot he t op sur f ace oft he car ri er . 6.p ocketposi ti on r elat i ve t ospr ockethol e m easured as tr ue posi ti on ofpocket ,notpockethol e. ao = 7. 3mm bo = 7. 3mm 1.75 2. 0 ? see not e6 4. 0 ? see not e1 ?1. 5+0. 1/ - 0. 0 0.30 0. 05 16. 00. 3 ?1. 5mi n a a sect i on a - a ko 7. 5 ? see not e6 12. 0 r0. 3max k1 bo 5. 6 ao 5. 6 ko = 2. 1mm k1 = 1. 25 m m rjb t- 8152 11/16/98 t102787b t r0. 5 1. 7 ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 65 - 66 9 ordering information model description delivery form package pcs/reel AS3515e-ectp AS3515 v15 ctbga64 lf t&r tape&reel dry p ack 64-ball ctbga 0 .8mm pitch (7mm x 7mm) 2250 AS3515e-elqp AS3515 v15 lqfp64 lf t&r tape&reel dry p ack 64-pin lqfp 0 .5mm pitch (10mm x 10mm) 1000 AS3515e-ects AS3515 v15 ctbga64 lf tra tray dry pack 64-ball ctbga 0 .8mm pitch (7mm x 7mm) ams ag technical content still valid
AS3515 v15 austriamicro systems data sheet, confidential www.austriamicrosystems.com revision 3.1 66 - 66 10 copyright copyright ? 1997-2008, austriam icrosystems ag, schloss premstaetten, 8141 unte rpremstaetten, austria-europe. trademarks registered ?. all rights reserved. the material herein may not be reproduced, adapted, merged, translated, stored, or used with out the prior written consent of the copyright owner. all products and companies mentioned are trademarks of their respective companies. 11 disclaimer devices sold by austriamicrosystems ag are covered by the warranty and patent identification provisions appearing in its term o f sale. austriamicrosystems ag makes no warranty, ex press, statutory, implied, or by descrip tion regarding the information set forth he rein or regarding the freedom of the described device s from patent infringement. austriamicrosystems ag rese rves the right to change specifications and prices at any time and without notice. therefore, prior to designing this pr oduct into a system, it is neces sary to check with austriamicrosystems ag for current information. this product is intended for use in normal commercial applications. applic ations requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, m edical life- support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems ag f or each application. the information furnished here by austriamicrosystems ag is belie ve d to be correct and accurate. however, austriamicrosystems a g shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in conne ction with or arising out of the furnishing, performance or use of the technical data herein. no obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems ag rendering of technical or other services. 12 contact information headquarters: austriamicrosystems ag business unit c ommunications a 8141 schloss premst?tten, austria t. +43 (0) 3136 500 0 f. +43 (0) 3136 5692 info@austriamicrosystems.com for sales offices, distributors and representatives, please visit: www.austriamicrosystems.com austria micro systems ? a leap ahead in analog ams ag technical content still valid

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