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1/26 ? semiconductor msm7570l-01/02 ? semiconductor msm7570l-01/02 multi-function adpcm codec general description the msm7570l-01/02, developed for advanced digital cordless telephone systems, are single channel adpcm codec ics which perform mutual transcoding between the analog voice band signal and 32 kbps adpcm serial data. the devices include dtmf tone and several types of tone generation, transmit/receive data mute and gain control, side-tone path and gain control, and vox function. using advanced circuit technology, these devices operate from a single 3 v power supply and provide low power consumption. note: the msm7570lC01differs from msm7570lC02 in ringing tone frequency. features ? ? ? ? ? single 3 v power supply operation v dd : 2.7 v to 3.6 v ? ? ? ? ? adpcm algorithm : itu-t g.726 (32 kbps, 24 kbps, 16 kbps) ? ? ? ? ? full-duplex transmit/receive operation ? ? ? ? ? transmit/receive synchronous mode only ? ? ? ? ? pcm data format : a-law/ m -law selectable ? ? ? ? ? serial pcm/adpcm transmission data rate :64 kbps to 2048 kbps ? ? ? ? ? low power consumption operating mode : 21 mw typ. (v dd = 3.0 v) power-down mode : 0.3 mw typ. (v dd = 3.0 v) ? ? ? ? ? two analog input amplifier stages : externally adjustable gain ? ? ? ? ? analog output stage : push-pull drive (direct drive of 350 w + 120 nf) ? ? ? ? ? master clock frequency : 12.288/19.200 mhz selectable ? ? ? ? ? transmit/receive mute, transmit/receive programmable gain control ? ? ? ? ? side tone path with programmable attenuation (8-step level adjustment) ? ? ? ? ? built-in dtmf tone generator ? ? ? ? ? built-in various ringing/function tones generator ? ? ? ? ? built-in various ring back tone generator ? ? ? ? ? serial mcu interface control ? ? ? ? ? built-in sounder driving amplifier ? ? ? ? ? built-in vox control transmit side : voice signal detect receive side : background noise generation ? ? ? ? ? characteristic evaluation board. ? ? ? ? ? package: 32-pin plastic tsop (tsopi32-p-814-0.50-1k) (product name: msm7570l-01ts-k) (product name: MSM7570L-02ts-k) e2u0028-28-82 this version: aug. 1998 previous version: nov. 1996
2/26 ? semiconductor msm7570l-01/02 block diagram + C1 +1 C1 voxo xsync is pcmsi pcmso bclk pcmri pcmro ir rsync voxi adpcm coder txmute rxon/off rxpad ex- pan- der receive gain adjust lpf d/a conv. rc filter clock/timing mcu interface v ref voice detect compan- der transmit gain adjust tone gain adjust bpf txon/off a/d conv. rc filter dtmf/other tone generator noise generator side tone gain adjust ain1C ain1+ gsx1 ain2 gsx2 aout+ aoutC pwi vfro sao+ saoC sg vddc dgc agc den exck din dout mck pdn/ reset rxmute adpcm decoder power detect p / s p / s p / s s / p s / p s / p C + C + C + +
3/26 ? semiconductor msm7570l-01/02 pin configuration (top view) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 ag sg ain1+ ain1C gsx1 ain2 gsx2 vfro pwi aoutC aout+ sao+ saoC pdn/reset voxi v dd dg bclk xsync rsync pcmso pcmsi is ir pcmro pcmri mck den exck din dout voxo 32-pin plastic tsop
4/26 ? semiconductor msm7570l-01/02 pin and functional descriptions ain1+, ain1C, ain2, gsx1, gsx2 transmits analog input and the output for transmit gain adjustment. ain1C (ain2) connects to the inverting input of the internal transmit amplifier. ain1+ connects to the non-inverting input of the internal transmit amplifier. gsx1 (gsx2) connects to the internal transmit amplifier output. refer to fig.1 for gain adjustment. vfro, aout+, aoutC, pwi receives analog output and the output for receive gain adjustment. vfro is the receive filter output. aout+ and aoutC are differential analog signal outputs which can directly drive z l = 350 w + 120 nf or a 1.2 k w load. refer to fig.1 for gain adjustment. figure 1 analog input/output interface transmit gain: v gsx2 /vi = (r2/r1) (r4/r3) ain1C gsx1 r2 c1 to encoder r1 from decoder differential analog output receive gain: vo/v fro = 2 (r6/r5) z l = 120 nf + 350 w ain2 gsx2 r4 c2 r3 aoutC pwi r6 vfro r5 aout+ ain1+ C1 C + C + C + c1 r1 r2 v ref sg differential sound output z l = 120 nf + 350 w saoC C1 sao+ +1 select + C 10 m f 0.1 m f differential analog input vi v o
5/26 ? semiconductor msm7570l-01/02 sao+, saoC differential analog outputs for sound output. control register data cr4-b5 determines the output pins (aout+ and aout- /sao+ and sao- ) for the voice signal and an acoustic component of the sound tone, dtmf tone, r tone, f tone, and various types of tones at either the vfro pin or the sao+ and sao- pins. the output load conditions of these pins are the same as those of aout+ and aout-. sg analog signal ground. the output voltage of this pin is approximately 1.4 v. put the bypass capacitors (10 m f in parallel with 0.1 m f ceramic type) between this pin and ag to get the specified noise characteristics. during power-down, this output voltage is 0 v. the sg voltage if necessary should be used via a beffer. ag analog ground. dg digital ground. this ground is separated from the analog signal ground pin (ag). the dg pin must be kept as close as possible to ag on the pcb. v dd +3 v power supply. pdn/reset power down and reset control input. a 0 level makes the ic enter a power down state. at the same time, all control register data are reset to the initial state. set this pin to 1 during normal operating mode. the power down state is controlled by a logical or with cr0-b5 of the control register. when using pdn/reset for power down and reset control, set cr0-b5 to digital 0. the reset width (during l) should be 200ns or more. mck master clock input. the frequency must be 12.288 mhz or 19.2 mhz. the applied clock frequency is selected by the control register data cr0-b6. the master clock signal may be asynchronous with bclk, xsync, and rsync.
6/26 ? semiconductor msm7570l-01/02 pcmso transmit pcm data output. pcm is output from msb in synchronization with the rising edge of bclk and xsync. pcmsi transmit pcm data input. this signal is converted to the transmit adpcm data. pcm is shifted in synchronization with the falling edge of bclk. normally, this pin is connected to pcmso. pcmro receive pcm data output. pcm is the output signal after adpcm decoder processing. this signal is output serially from msb in synchronization with the rising edge of bclk and rsync. pcmri receive pcm data input. pcm is shifted on the rising edge of the bclk and input from msb. normally, this pin is connected to pcmro. is transmit adpcm signal output. after having encoded pcm with adpcm, this signal is output from msb in synchronization with the rising edge of bclk and xsync. this pin is an open drain output and remains in a high impedence state during power-down. is requires a pull-up resistor. ir receive adpcm signal input. this input signal is shifted serially on the falling edge of bclk in synchronization with rsync, and input from msb. bclk shift clock input for the pcm data (pcmso, pcmsi, pcmro, pcmri) and the adpcm data(is, ir) . the frequency is set in the 64 khz to 2048 khz range.
7/26 ? semiconductor msm7570l-01/02 xsync transmit pcm and adpcm data 8 khz synchronous signal input. synchronize this signal with bclk signal. xsync is used to indicate the msb of the transmit serial pcm and adpcm data stream. be sure to input the xsync signal because it is also used as the input of the timing generator. rsync receive pcm and adpcm data synchronous signal input. synchronize this signal with bclk signal. rsync is used to indicate the msb of the receive serial pcm and adpcm data stream. voxo transmit vox function signal output. vox function voice recognizes the presence or absence of the transmit voice signal by detecting the signal energy. 1 and 0 levels set on this pin correspond to the presence and the absence of voice, respectively. this result appears at the register data cr7-b7. the signal energy detect threshold is set by the control register data cr6-b6, b5. voxi signal input for receive vox function. a 1 level at voxi indicates the presence of a voice signal. the decoder block processes normal receive signal, and the voice signal appears at the analog output pins . the 0 level indicates the absence of a voice signal. background noise generated in this device is transferred to the analog output pins. the background noise amplitude is set by the control register cr6. because this signal is ored with the register data cr6-b3, set the control register data cr6-b3 to digital 0.
8/26 ? semiconductor msm7570l-01/02 voice input gsx2 voxo voxi voice output vfro t vxon voice detect t vxoff silence detect (hang-over time) normal voice signal decoded time period background noise (a) transmit vox function timing diagram (b) receive vox function (cr6-b3: digital "0") timing diagram voice voice voice silence silence voice note: voxo, voxi functions becomes valid when setting cr6-b7 to digital 1. figure 2 vox function
9/26 ? semiconductor msm7570l-01/02 figure 3 mcu interface input/output timing table 1 shows the register map. den , exck, din, dout serial control ports for mcu interface. reading and writing data are performed by an external mcu through these pins. eight registers with eight bits are provided on the devices. den is the enable control signal input, exck is the data shift clock input, din is the address and data input, and dout is the data output. fig.3 shows the input/output timing diagram. r/w : read/write enable r : read only register. high impedance high impedance (a) write data timing diagram (b) read data timing diagram den w exck din a2 dout a1 a0 b7 b6 b5 b4 b3 b2 b1 b0 r a2a1a0 b7 b6 b5 b4 b3 b2 b1 b0 den exck din dout table-1 name address a2 a1 a0 control and detect data r/w b7 b6 b5 b4 b3 b2 b1 b0 cr0 000 r/w a/ m sel mck sel pdn all pdn sao/aout cr1 001 r/w mode1 mode0 tx reset rx reset tx mute rx mute rx pad cr2 010 r/w tx on/off tx gain2 tx gain1 tx gain0 rx on/off rx gain2 rx gain1 rx gain0 cr3 011 r/w side tone gain2 side tone gain1 side tone gain0 tone on/off tone gain3 tone gain2 tone gain1 tone gain0 cr4 100 r/w dtmf/ others sel tone send sao/ vfro tone4 tone3 tone2 tone1 tone0 cr5 101 r/w cr6 110 r/w vox on/off on lvl1 on lvl0 off time vox in rx noise level sel rx noise lvl1 rx noise lvl0 cr7 111 r vox out tx noise lvl1 tx noise lvl0
10/26 ? semiconductor msm7570l-01/02 absolute maximum ratings parameter power supply voltage analog input voltage digital input voltage storage temperature symbol v dd v ain v din t stg condition rating C0.3 to +5 C 0.3 to v dd + 0.3 C0.3 to v dd + 0.3 C55 to +150 unit v v v c recommended operating conditions parameter symbol condition min. typ. max. unit power supply voltage v dd voltage must be fixed 2.7 3.6 v mck, xsync, rsync, pcmri, pcmsi, bclk, ir, pdn/reset , den, exck, din digital input high voltage v ih 0.45 v dd v dd v mck, xsync, rsync, pcmri, pcmsi, bclk, ir, pdn/reset , den, exck, din digital input low voltage v il 0 0.16 v dd v master clock frequency f mck1 mck (cr0Cb6 = "0") C 0.01% 12.288 + 0.01% mhz bit clock frequency f bck bclk 64 2048 khz synchronous signal frequency f symc xsync, rsync 8.0 khz clock duty ratio d c mck, bclk, exck 30 50 70 % mck, xsync, rsync, pcmri, pcmsi, bclk, ir, pdn/reset , den, exck, din digital input rise time t ir 50ns mck, xsync, rsync, pcmri, pcmsi, bclk, ir, pdn/reset , den, exck, din digital input fall time t if 50ns transmit sync signal setting time t xs bclk to xsync 100 ns t xs xsync to bclk 100 ns receive sync signal setting time t rs bclk to rsync 100 ns t sr rsync to bclk 100 ns synchronous signal width t ws xsync, rsync 1 bclk 100 m s bypass capacitors for sg c sg 10 + 0.1 m f digital output load r dl is (pull-up resistor) 500 w c dl 100 pf is, pcmso, pcmro, voxo, dout operating temperature ta C25 +25 +70 c f mck2 mck (cr0Cb6 = "1") C 0.01% 19.200 + 0.01% mhz pcm, adpcm set-up time t ds 100 ns pcm, adpcm hold time t dh 100 ns sg to ag
11/26 ? semiconductor msm7570l-01/02 parameter power supply current input high voltage input low voltage output low voltage output leakage current input capacitance symbol i dd1 i dd2 v ih v il v ol i o condition operating mode, no signal, (v dd = 3.0 v) power down mode, (v dd = 3.0 v) 1 lsttl, pull-up: 500 w is min. 0.45 0.0 0.0 typ. 7 0.1 0.2 max. 14 0.2 v dd 0.16 0.4 10 unit ma ma v v v m a c in 5pf (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) output resistance r osg sg 2550k w v dd v dd input leakage current i ih i il v i = v dd v i = 0 v 2.0 0.5 m a m a sg warm-up time t sg sg ? gnd 10 + 0.1 m f (rise time to 90% of max. level) 700 ns electrical characteristics dc and digital interface characteristics parameter input resistance output load resistance output load capacitance output amplitude input offset voltage symbol r inx r lgx c lgx v ogx v ofgx condition ain1+ , ain1C , ain2 min. 10 20 C20 typ. max. 100 *1.30 +20 unit m w k w pf v pp mv gsx1, gsx2 gsx1, gsx2 gsx1, gsx2, r l = 20 k w preCopamps (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) transmit analog interface characteristics * C7.7 dbm (600 w ) = 0 dbm0, + 3.14 dbm0 = 1.30 v pp (a-law) C7.7 dbm (600 w ) = 0 dbm0, + 3.17 dbm0 = 1.30 v pp ( m -law)
12/26 ? semiconductor msm7570l-01/02 parameter input resistance output load resistance output capacitance symbol r inpw r lvf r lao c lvf c lao condition pwi min. 10 20 1.2 typ. max. 100 100 unit m w k w k w pf pf vfro output voltage level offset voltage v ovf v oao v ofvf v ofao C100 C20 *1.30 +100 +20 v pp v pp mv mv vfro, aout+, aoutC, sao+, saoC vfro aout+, aoutC, sao+, saoC aout+, aoutC, sao+, saoC vfro aout+, aoutC (gain = 0 db, power amp only) sao+, saoC g db 40db power amp (0.3 to 3.4 khz, z l = 350 w + 120 nf)(see fig.1) r l = 20 k w z l = 350 w + 120 nf (see fig.1) r l = 1.2 k w v pp (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) *1.30 *1.30 open loop gain * C7.7 dbm (600 w ) = 0 dbm0, + 3.14 dbm0 = 1.30 v pp (a-law) C7.7 dbm (600 w ) = 0 dbm0, + 3.17 dbm0 = 1.30 v pp ( m -law) receive analog interface characteristics
13/26 ? semiconductor msm7570l-01/02 parameter transmit frequency response symbol l oss t1 level 0 to 60 min. 25 typ. max. unit db freq. others l oss t2 300 to 3000 C0.15 +0.20 db l oss t3 1020 reference db 0 l oss t4 3300 C0.15 +0.80 db l oss t5 3400 0 0.80 db l oss t6 3968.75 13 db receive frequency response 0 to 3000 C0.15 +0.20 db 1020 reference db 3300 C0.15 +0.80 db 0 3400 0 0.80 db 3968.75 13 db transmit signal to distortion ratio sd t1 35 3 sd t2 35 0 sd t3 35 C30 sd t4 1020 28 C40 sd t5 23 C45 receive signal to distortion ratio sd r1 3 sd r2 0 sd r3 C30 sd r4 1020 C40 sd r5 C45 transmit gain tracking gt t1 C0.2 +0.2 gt t2 reference gt t3 1020 C0.2 +0.2 C40 gt t4 C0.5 +0.5 gt t5 C1.2 +1.2 3 C10 C50 C55 receive gain tracking gt r1 C0.2 +0.2 gt r2 reference gt r3 1020 C0.2 +0.2 gt r4 C0.5 +0.5 gt r5 C1.2 +1.2 C40 3 C10 C50 C55 condition l oss r1 l oss r2 l oss r3 l oss r4 l oss r5 35 35 35 28 23 (*1) (*1) db db db db db db db db db db db db db db db db db db db db (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) (dbm0) (hz) ac chracteristics *1 use the p-message weighted filter
14/26 ? semiconductor msm7570l-01/02 digital output delay time pcm and adpcm interface t sdx 0 200 t sdr 0 200 t xd1 0 200 t xd2 0 200 ns 1 lsttl + 100 pf, pull-up: 500 w p srrt noise freq. : 0 to 50 khz 30db power supply noise rejection ratio noise level : 50 mv pp p srrr t xd3 0 200 parameter symbol level min. typ. max. unit (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) freq. others condition see fig.4 30db ns ns ns ns t rd1 t rd2 t rd3 t m1 50ns t m2 50ns t m3 50ns t m4 50ns t m5 100 ns t m6 50ns t m7 50ns t m8 0 50 ns t m9 50ns t m10 50ns t m11 0 50 ns serial port digital input/output setting time c l = 100 pf see fig.5 f exck 10mhz exck shift clock frequency (dbm0) (hz) n idlt C68 (C75.7) dbmop (dbmp) n idlr 1020 a vt 0.285 0.320 (*3) 0.359 0 a vr 0.285 0.320 (*3) 0.359 C72 (C79.7) idle channel noise ain = sg (*1) (*2) vrms vrms gsx2 absolute signal amplitude vfro (*1) ac characteristics (continued) *1 use the p-message weighted filter *2 pcmri input code "11010101"(a-law) "11111111"( m -law) *3 0.320 vrms = 0 dbm0 = C7.7 dbm note: all adpcm coder and decoder characteristics comply with itu-t recommendation g.726.
15/26 ? semiconductor msm7570l-01/02 C2.5 db t vxon off ? on 10 ms transmit vox detect time (voice signal on/off detect time ) t vxof parameter symbol min. typ. max. unit (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) condition 150/310 160/320 170/330 ms on ? off d vx to the values (cr6-b6, b5) voxo, see fig.2 0 +2.5 transmit vox detect level accuracy (threshold level) * 5 C18 C16 C10 C8 dbm0 d ft1 dtmf tones C7 +7 hz frequency difference d ft2 parameter symbol min. typ. max. unit (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) condition C7+7hz dbm0 dbm0 dbm0 other tones v tl transmit tones (gain setting 0db) v th v rl v rh 1 dbm0 r dtmf v th /v tl , v rh /v rl original (reference) tone signal level *4 relative level of dtmf tones dtmf (high) and other tones dtmf (low) dtmf (high) and other tones C16 C14 C8 C6 2 C14 C12 C6 C4 3 receive tones (tone generator gain setting C6db) dtmf (low) ac characteristics (dtmf and other tones) *4 does not contain the setting value set for the programmable gain ac characteristics (programmable gain stages) d g all gain stages, to programmed value C1 0 +1 db gain accuracy parameter symbol min. typ. max. unit (v dd = 2.7 v to 3.6 v, ta = C25c to +70c) condition ac characteristics (vox function) *5 when single tone is input at 1000hz
16/26 ? semiconductor msm7570l-01/02 123456 78910 123456 78910 0 t xd1 t xd2 t ws t sx t xs t sdx msb lsb t xs t sx t xd1 t xd2 msb lsb t xd3 t xd3 t sdx bclk xsync pcmso bclk xsync is 0 timing diagram transmit side pcm/adpcm data interface figure 4 pcm/adpcm data interface 123456 78910 123456 78910 0 t rd1 t rd2 t ws t sr t rs t sdr msb lsb t rs t sr t rd3 bclk rsync pcmro bclk rsync msb lsb ir t dh t ds 0 receive side pcm/adpcm data interface
17/26 ? semiconductor msm7570l-01/02 figure 5 mcu interface serial port data transfer for mcu interface t m1 t m3 t m4 t m2 123456 t m6 t m7 t m5 11 12 t m10 t m11 w/r a2 a1 a0 b7 b7 t m8 b1 b0 b1 b0 t m9 den exck din dout
18/26 ? semiconductor msm7570l-01/02 functional description control registers (1) cr0 (basic operating mode) note: initial value: reset state by pdn/reset b7 ...pcm companding law select; 0/ m -law, 1/a-law b6 ...master clock frequency select; 0/12.288 mhz, 1/19.200 mhz b5 ...power down (entire system); 0/power on, 1/power down when using this data for power down control, set pin pdn/reset at 1level. the control registers are not reset by this signal. b2 ...not used b1 ...not used b0 ...power down for sound output amps: (sao+, saoC), or receiver output amp (aout+, aoutC, vfro ); if this data is set to digital 1, either a pair of sound amplifiers or a pair of reciver amplifiers enters the power down state depending on the set data on cr4-b5. if this data is set to digital "0", sound amplifiers and receiver amplifiers are in the power- on state. b4, b3 ... not used (these pins are used to test the device. they should be set to "0" during normal operation.) b0 pdn sao/aout 0 b1 0 b2 0 b3 0 b4 0 b5 pdn all 0 b6 mck sel 0 b7 a/ m sel 0 cr0 initial value (note)
19/26 ? semiconductor msm7570l-01/02 (2) cr1 (adpcm block operating mode) b7, b6 ... adpcm data compression algorithm select; (0, 0): 32 kbps (0, 1): 64 kbps (data through) (1, 0): 24 kbps (1, 1): 16 kbps b5 ... adpcm of transmit reset (specified by g.726); 1/reset* b4 ... adpcm of receive reset (specified by g.726 ); 1/reset* b3 ... adpcm transmit data mute, 1/mute b2 ... adpcm receive data mute, 1/mute b1 ... not used b0 ... receive side pad, 1/inserted,12 db loss 0/no pad * the reset width should be 125 m s or more. the transmitter and receiver cannot be reset separately. they must be reset at the same time. b0 rx pad 0 b1 0 b2 rx mute 0 b3 tx mute 0 b4 rx reset 0 b5 tx reset 0 b6 mode0 0 b7 mode1 0 cr1 initial value
20/26 ? semiconductor msm7570l-01/02 this programmable gain table, not only for transmit/receive voice signal and the transmitted dtmf and other tones. the transmission of these tone signal is enabled by the cr4-b6 data described later. the original (reference) signal amplitude of these tones is analogically defined as follows. dtmf low-group-tones .................................... C16 dbm0 dtmf high-group-tones and others............... C14 dbm0 for example, when selecting +8 db (b6, b5, b4) = (1,1,1) as a transmit gain, each tone signal amplitude with an analogical expression on the pin pcmso becomes as follows . dtmf low-group tones .................................... C8 dbm0 dtmf high-group tones and other tones ...... C6 dbm0 gain setting for the side tone (path to receive side from transmit side) and the receive side tone is performed by register cr3. (3) cr2 (pcm codec operational mode setting and transmit/receive gain adjustment) b7 ... pcm coder disable; 0/enable, 1/disable (transmit pcm idle pattern) b6, b5, b4 ... transmit gain adjustment, refer to table-2. b3 ... pcm decoder disable; 0/enable, 1/disable (receive pcm idle pattern) b2, b1, b0 ... receive gain setting, refer to table-2. table-2 b0 rx gain0 0 b1 rx gain1 0 b2 rx gain2 0 b3 rx on/off 0 b4 tx gain0 0 b5 tx gain1 0 b6 tx gain2 0 b7 tx on/off 0 cr2 initial value b6 b5 b4 transmit gain b2 b1 b0 receive gain 0 0 0 C6 db 0 0 0 C6 db 001 C4 db 001 010 C2 db 010 011 0 db 011 100 +2 db 100 101 +4 db 101 110 +6 db 110 111 +8 db 111 C4 db C2 db 0 db +2 db +4 db +6 db +8 db
21/26 ? semiconductor msm7570l-01/02 (4) cr3 (side tone and other tone generator gain setting) the tone generator gain setting table for the receive side, as shown in table-4, depends upon the following reference level. dtmf low-group tones ................................ C2 dbm0 dtmf high-group tones and others ............ 0 dbm0 for example, when selecting C6 db (b3, b2, b1, b0) = (1, 1, 1, 1) as a tone generator gain, each dtmf tone signal amplitude on sao+/saoC or vfro is as follows. dtmf low-group tone .................................. C8 dbm0 dtmf high-group tone or other tones ....... C6 dbm0 b7, b6, b5 ... side tone path gain setting, refer to table-3. b4 ... tone generator enable; 0/disable, 1/enable b3, b2, b1, b0 ... tone generator gain adjustment for receive side, refer to table-4 table-3 b7 b6 b5 side tone path gain 000 off 0 0 1 C21 db 010 011 100 101 110 111 C19 db C17 db C15 db C13 db C11 db C9 db table-4 b0 tone gain0 0 b1 tone gain1 b2 tone gain2 b3 tone gain3 b4 tone on/off b5 side. tone gain0 b6 side. tone gain1 b7 side. tone gain2 0 0 0 0 0 0 0 cr3 initial value b3 b2 b1 b0 tone generator gain b3 b2 b1 b0 tone generator gain 0000 C36 db 1000 C20 db 0001 C34 db 1001 C18 db 0010 C32 db 1010 C16 db 0011 C30 db 1011 C14 db 0100 C28 db 1100 C12 db 0101 C26 db 1101 C10 db 0110 C24 db 1110 C8 db 0111 C22 db 1111 C6 db
22/26 ? semiconductor msm7570l-01/02 (5) cr4 (tone genereator operating mode and frequency select) (b) b7 = 0 (other tones) b7 ... dtmf or other tones select; 0/others, 1/dtmf b6 ... tone transmit enable (transmit side); 0/voice signal (transmit), 1/tone transmit b5 ... tone output pin select (receive side); 0/vfro, 1/sao+ and saoC b4, b3, b2, b1, b0 ... tone frequency setting, referred to table-5-1, 5-2, and 5-3. (a) b7 = 1 (dtmf tone) *unrelated table-5-1 table-5-2 b0 b1 b2 b3 b4 b5 b6 b7 tone0 tone1 tone2 tone3 tone4 sao/ vfro tone send dtmf/others sel 0 0 0 0 0 0 0 0 cr4 initial value b4 b3 b2 b1 b0 frequency b4 b3 b2 b1 b0 frequency * 0 0 0 0 697 hz + 1209 hz * 1 0 0 0 852 hz + 1209 hz 0 0 0 1 697 hz + 1336 hz 1 0 0 1 852 hz + 1336 hz 0 0 1 0 697 hz + 1477 hz 1 0 1 0 852 hz + 1477 hz 0 0 1 1 697 hz + 1633 hz 1 0 1 1 852 hz + 1633 hz 0 1 0 0 770 hz + 1209 hz 1 1 0 0 941 hz + 1209 hz 0 1 0 1 770 hz + 1336 hz 1 1 0 1 941 hz + 1336 hz 0 1 1 0 770 hz + 1477 hz 1 1 1 0 941 hz + 1477 hz 0111 1111 ** ** ** ** ** ** ** 770 hz + 1633 hz 941 hz + 1633 hz b4 b3 b2 b1 b0 frequency b4 b3 b2 b1 b0 frequency 00000 1k/1333 hz, 16 hz wamb. 1 0 0 0 0 2000 hz single tone 00001 800/667 hz, 16 hz wamb. 1 0 0 0 1 2042 hz single tone 00010 800/1k hz,16 hz wamb. 1 0 0 1 0 2514 hz single tone 00011 500/667 hz,16 hz wamb. 1 0 0 1 1 500 hz single tone 00100 500/400 hz,16 hz wamb. 1 0 1 0 0 667 hz single tone 00101 800/1k hz, 8 hz wamb. 1 0 1 0 1 1333 hz single tone 00110 500/400 hz, 8 hz wamb. 1 0 1 1 0 2100 hz single tone 00111 400 hz,16 hz wamb. 10111 01000 400 hz,20 hz wamb. 11000 0 1 0 0 1 400 hz single tone 1 1 0 0 1 0 1 0 1 0 425 hz single tone 1 1 0 1 0 0 1 0 1 1 440 hz single tone 1 1 0 1 1 0 1 1 0 0 450 hz single tone 1 1 1 0 0 0 1 1 0 1 800 hz single tone 1 1 1 0 1 0 1 1 1 0 1000 hz single tone 1 1 1 1 0 0 1 1 1 1 1300 hz single tone 1 1 1 1 1
23/26 ? semiconductor msm7570l-01/02 (b) b7 = 0 (other tones) <MSM7570L-02> table-5-3 (6) cr5 (not used) b7 C b0..... not used b4 b3 b2 b1 b0 frequency b4 b3 b2 b1 b0 frequency 00000 1k/1333 hz 16 hz wamb. 1 0 0 0 0 2500 hz single tone 00001 800/1k hz 16 hz wamb. 1 0 0 0 1 2600 hz single tone 00010 800/1k hz 8 hz wamb. 1 0 0 1 0 2670 hz single tone 00011 400 hz, 16 hz wamb. 1 0 0 1 1 2700 hz single tone 00100 2700 hz, 16 hz wamb. 1 0 1 0 0 2800 hz single tone 0 0 1 0 1 400 hz 1 0 1 0 1 2910 hz single tone 0 0 1 1 0 800 hz 1 0 1 1 0 3000 hz single tone 0 0 1 1 1 1000 hz 1 0 1 1 1 3110 hz single tone 0 1 0 0 0 1333 hz 1 1 0 0 0 3200 hz single tone 0 1 0 0 1 1440 hz 1 1 0 0 1 0 1 0 1 0 1900 hz 1 1 0 1 0 0 1 0 1 1 2000 hz 1 1 0 1 1 0 1 1 0 0 2100 hz 1 1 1 0 0 0 1 1 0 1 2180 hz 1 1 1 0 1 0 1 1 1 0 2300 hz 1 1 1 1 0 0 1 1 1 1 2400 hz 1 1 1 1 1 b0 b1 b2 b3 b4 b5 b6 b7 0 0 0 0 0 0 0 0 cr5 initial value
24/26 ? semiconductor msm7570l-01/02 (7) cr6 (vox function control) b7 ... vox function enable; 0/disable, 1/enable b6, b5 ... transmit signal energy detect (transmit vox) threshold (0, 0): C30 dbm0 (0, 1): C35 dbm0 (1, 0): C40 dbm0 (1, 1): C45 dbm0 b4 ... hang-over time (fig.2, t vxoff) ; 0/160 ms, 1/320 ms b3 ... receive vox function setting; 0/background noise transmit, 1/voice signal detect when using this data for control, set pin voxi at 0 level. b2 ... background noise amplitude setting; 0/automatic, 1/programmable by b1 and b0 automatic : set the noise at the voice signal amplitude when b3 (or voxi) changes from 1 to digital 0. b1, b0 ... (0, 0): no noise (0, 1): C55 dbm0 (1, 0): C45 dbm0 (1, 1): C35 dbm0 (8) cr7 (detect register, read only) * for ic test b7 ... transmit vox function result; 0/silence, 1/voice b6, b5 ... transmit silence level (indicator); (at 1000 hz) (0, 0) : below C60 dbm0 note: these outputs are valid only when the vox (0, 1) : C50 to C60 dbm0 function is enabled by cr6-b7. (1, 0) : C40 to C50 dbm0 (1, 1) : above C40 dbm0 b4 ... not used b3 ... not used b2 ... not used b1 ... not used b0 ... not used b0 rx noise lvl0 0 b1 rx noise lvl1 0 b2 rx noise level sel 0 b3 vox in 0 b4 off time 0 b5 on lvl0 0 b6 on lvl1 0 b7 vox on/off 0 cr6 initial value b0 b1 b2 b3 b4 * b5 tx noise lvl0 0 b6 tx noise lvl1 0 b7 vox out 0 cr7 initial value * * **
25/26 ? semiconductor msm7570l-01/02 * single-ended analog input stage type 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 msm7570l-01/02 ts ag ain1+ ain1C gsx1 ain2 gsx2 vfro pwi aoutC aout+ sao+ saoC pdn/reset voxi v dd dg bclk xsync rsync pcmso pcmsi is ir pcmro pcmri mck den exck din dout voxo v dd 8 khz sync. signal input bit clock (64 khz to 2048 khz) adpcm output adpcm input vox out interface serial mcu master clock power-down/reset input receive voice analog output vox in + C sg transmit voice analog input v dd sound + C application circuit
26/26 ? semiconductor msm7570l-01/02 (unit : mm) package dimensions notes for mounting the surface mount type package the sop, qfp, tsop, soj, qfj (plcc), shp and bga are surface mount type packages, which are very susceptible to heat in reflow mounting and humidity absorbed in storage. therefore, before you perform reflow mounting, contact okis responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). tsop i 32-p-814-0.50-1k package material lead frame material pin treatment solder plate thickness package weight (g) epoxy resin 42 alloy solder plating 5 m m or more 0.27 typ. mirror finish

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