analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems features ? 95 db dynamic range ? -85 db thd+n ? up to 200 khz sampling frequency ? i 2 s or left justified audio data format, 16-24 bits ? vdda and vddd from 3v to 5.5v ? vddp from 1.4v to 5.5v ? auto speed mode detection in slave mode. ? auto mclk divide detection in master mode. applications ? digital video recorder ? audio recorder ? set top boxes ? lcd or digital tvs ? car audio ? a/v receiver general description the PA5240 is a low cost stereo analog to digital converter. the PA5240 can accept i2s or left justified serial audio data format up to 24-bit word length. the device uses advanced multi-bit ? - modulation technique to convert signals from analog to digital. the multi-bit ? - modulator makes the device with very low sensitivity to clock jitter and very low out of band noise. block diagram ordering information temperature range package part number -40 to 85 c tssop-16 PA5240-t7 95246 clock manager sample rate detector multi-level sigma-delta adc dsp audio data interface control interface mclk a inl a inr sdata sclk lrck m1 m0
analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems pin descriptions pin name pin number input or output pin description m0, m1 1, 16 i mode selection mclk 2 i master clock sclk 7 i/o serial data bit clock lrck 8 i/o serial data left and right channel frame clock sdout 4 o serial data output resetb 9 i active low chip reset a inl , a inr 10,12 i analog left and right inputs v ddp 3 i power supply for the digital input and output v ddd /gnd d 6, 5 i digital power supply v dda /gnd a 13, 14 i analog power supply refp 15 o filtering capacitor connection refq 11 o filtering capacitor connection absolute maximum ratings supply voltage ??????????. min-0.3v max +7.0v input voltage ??????? min gnd-0.3v max v ddp +0.3v operating temperature??????..min -40c max +85c storage temperature???????min -65c max +150c recommended operating conditions v dda ??????????. min 3.0v max 5.5v v ddd ??????????. min 3.0v max 5.5v v ddp ??????????.. min 1.5v max 5.5v m0 mclk v ddp sd out gnd d v ddd sclk lrck 1 2 3 4 5 6 7 8 m1 refp gnd a v dda a inr refq a inl resetb 16 15 14 13 12 11 10 9 PA5240
analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems analog and filter characteristics and specifications test conditions are as the following unless otherwise specify: v dda =5v, v ddd =3.3v, gnd a =0v, gnd d =0v, ambient temperature=25 ? c, fs=48 khz, 96 khz or 192 khz, mclk/lrck=256 or 128 parameter min typ max unit dynamic range (note 1) 98 db thd+n -85 db channel separation (1khz) 85 db signal to noise ratio 98 db interchannel gain mismatch 0.1 db gain error 5 % filter frequency response ? single speed passband 0 0.4535 fs stopband 0.5465 fs passband ripple 0.05 db stopband attenuation 70 db filter frequency response ? double speed passband 0 0.4167 fs stopband 0.5833 fs passband ripple 0.005 db stopband attenuation 70 db filter frequency response ? quad speed passband 0 0.2083 fs stopband 0.7917 fs passband ripple 0.005 db stopband attenuation 70 db analog input full scale input level 1 vrms input impedance 20 k ? note 1. the value is measured used a-weighted filter . if not use, the result will decrease 2-3 db.
analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems serial audio port switching characteristics parameter symbol min max unit mclk frequency 51.2 mhz mclk duty cycle 40 60 % lrck frequency 200 khz lrck duty cycle 40 60 % sclk frequency 26 mhz sclk pulse width low t sckl 15 ns sclk pulse width high t sckh 15 ns sclk rising to lrck edge delay t lrh 10 ns sclk rising to lrck edge setup time t rsu 10 ns sdata valid to sclk rising setup time t sds 10 ns sclk rising to sdata hold time t sdh 10 ns sdata sclk lrck t lrh t lrsu t sds t sdh t sckh t sckl t scky figure 1 serial audio port timing
analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems dc characteristics and specifications parameter min typ max unit power supply current (normal operation mode) ia 23.3 ma ia 21.1 ma id 32 ma v dda =5v v dda =3.3v v ddd , v ddp =5v v ddd , v ddp =3.3v id 14 ma power supply current (power down operation mode) ia 1.5 ma ia 1.2 ma id tbd ma v dda =5v v dda =3.3v v ddd , v ddp =5v v ddd , v ddp =3.3v id 1.1 ma digital voltage level input high-level voltage v ih 0.7v ddp v input low-level voltage v il 0.3v ddp v output high-level voltage v oh 0.7v ddp v output low-level voltage v ol 0.1v ddp v recommended application circuit ** these resistors and capacitor can only be used if v ddd is derived from v dda if used v ddd cannot drive any other logic note: * pull-up for i2s pull-down for left justified figure 1 recommended application circuit 5.1 ? **10 f **0.1 f **0.1 f 0.1 f 0.1 f 10 f 0.1 f 0.1 f 10 f v ddp v ddd gnd d resetb m0 m1 mlrck lrck sclk sdout ainl ainr refq refp gnd a v dd a resetb modeset 0 modeset 1 lrck mlrck sdout sclk 33? 33? 33? 2 8 7 4 16 1 9 5 6 3 vl or gnd *10 k 13 14 15 11 12 10 PA5240 10 f 0.1 f 0.1 f 0.1 f 0.1 f 10 f 0.1 f 0.1 f 10 f 2200 p f 2200 p f analog left in analog right in v a ( 3.3 to 5.5v ) v l ( 1.8 to 5.5v ) v d ( 3.3 to 5.5v )
analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems application descriptions master clock mode, slave clock mode and sampling frequency the device can work either in master clock mode or slave clock m ode by setting mode control pins m1 and m0 according to table 1 . table 1 mode control pin input/output pin description m1:m0 i 00 ? master clock mode, single speed mode 01 ? master clock mode, double speed mode 10 ? master clock mode, quad speed mode 11 ? slave clock mode, all speed modes in master mode, lrck and sclk are derived internally from mclk. the available mclk/lrck ratios are listed in table 2. sclk/lrck ratio is always 64 in master mode. in slave mode, lrck and sclk are supplied externally. lrck and sclk must be synchronously derived from the system clock with some specific rates. the device can auto detect mclk/lrck ratio according to table 2. the device only supports the mclk/lrck ratios listed in table 2. the lrck/sclk ratio is normally 64. table 2. sampling freque ncy and mclk/lrck ratio speed mode mclk/lrck ratio mater clock mode sampling frequency slave clock mode fs auto detection range 512 43khz ? 50khz single speed 256 8khz ? 50khz 8khz ? 50khz 256 86khz ? 100khz double speed 128 50khz ? 100khz 84khz ? 100khz 128 172khz ? 200khz quad speed 64* 100khz ? 200khz 167khz ? 200khz *in quad speed mode, 64 ratio only available in master mode according to the sampling rate, the device can work in three speed modes: single speed, double speed and quad speed. in master mode, mode pins m1 and m0 set the speed mode according to table 1. in slave mode, the device can detect the speed mode automatically when the sampling rate falls into the auto detection ranges l isted in table 2. audio data output PA5240 can accept i2s or left justified serial audio input dat a from 16-bit to 24-bit. the device can detect the data word leng th automatically. the relationship of sdata, sclk and lrck with the two formats is shown through figure 2 to figure 3. when device powers up, it will detect the logic level on sdout pi n. if the logic level on sdout is high, PA5240 selects i2s for mat. if the logic level on sdout is low, PA5240 selects left justified format. sdout pin can be pull-up by a 10k ? resistor to set i2s audio format, or pull-down by a 10 k ? resistor to set left justified format.
analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems n- 2 n- 1 n 3 2 1 1 sclk msb lsb left channel n- 2 n- 1 n 3 2 1 1 sclk msb lsb right channel sdata sclk lrck figure 2 i2s serial audio data format up to 24-bit n- 2 n- 1 n 3 2 1 msb lsb left channel n- 2 n- 1 n 3 2 1 msb lsb right channel sdata sclk lrck figure 3 left justified serial audio data format up to 24-bit power up and power down resetb pin active low will put the device in power down mode. during power-up, resetb pin should be hold at low level to keep t he device in reset until the power supplies, cloc ks and mode selection pins are stable.
analog products division 561 e. elliot road #175 chandler, az 85225 tel: (480) 539-2900. fax: (480) 474-1715 www.protekanalog.com PA5240 24-bit, 192 khz stereo a/d converter for pcm audio 95246 rev.0. 01/10 not for use in life support systems package information life support policy protek analog's products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of protek devices.
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