8-pin, 24-bit, 192 khz stereo d/a converter for pcm audio rev 1.0 march, 2007 1 ES7134 general description the ES7134 is a low cost 8-pin stereo digital to analog converter. the ES7134 can accept i2s serial audio data format up to 24-bit word length. the device uses advanced multi-bit ? - modulation technique to convert data into two channel analog outputs. the multi-bit ? - modulator makes the device with very low sensitivity to clock jitter and very low out of band noise. features z 95 db dynamic range z -85 db thd+n z up to 200 khz sampling frequency z i 2 s audio data format, 16-24 bits z single power supply 4.5v to 5.5v applications z dvd players z portable audio players z set top boxes z digital tvs ordering information ES7134 -40c ~ +85c soic-8 block diagram audio data interface interpolation filter interpolation filter multi-level sigma-delta dac multi-level sigma-delta dac output amp low pass filter output amp low pass filter clock manager/ sample rate detector aoutl aoutr clkin sdata lrck sclk
everest semiconductor co., ltd. ES7134 rev 1.0 march, 2007 2 1. pin descriptions pin pin i/o description 1 sdata i serial audio data input 2 sclk i bit clock input 3 lrck i left and right channel clock input indicating input data sampling rate (fs) and channel selection 4 clkin i system clock input 5 aoutr o analog output of right channel 6 gnd i ground 7 vdd i device power supply 8 aoutl o analog output of left channel 2. recommended application circuit +5v 1 1 u1 aic7134 1 2 3 4 5 6 7 8 sdata sclk lrck clkin aoutr gnd vdd aoutl + 1u/ 16v 0.1uf + 3.3u/ 16v 10k 3000pf 560 560 10k + 3.3u/ 16v left & right channel analog output serial auio data 33pf 3000pf 12 figure 1 recommended application circuit a outr sdata sclk lrck clkin ES7134 4 8 7 6 5 a outl vdd gnd 3 2 1
everest semiconductor co., ltd. ES7134 rev 1.0 march, 2007 3 3. application descriptions sampling rate and input clocks the serial audio input data is transmitted to the device at sdata pin. according to the sampling rate, the device can work in three speed modes, single speed, double speed and quad speed. the device can detect the speed mode of the input data stream automatically when the sampling rate falls into the auto det ection ranges listed in table1. if the sampling rate is outside the auto detection ranges, the device will not work properly. mode fs auto detection range clkin/lrck ratio single speed 8khz ? 50khz 256, 384, 512, 768, 1024 double speed 84khz ? 100khz 128, 192, 256, 384, 512 quad speed 167khz ? 200khz 128, 192, 256 the device works with the input system cloc k clkin, sample data clock lrck and bit clock sclk. the data clock and bit clock must be synchronously derived from the system clock with some specific rates. the device on ly supports the clkin/ lrck ratios listed in table1. the lrck/sclk ratio is norma lly 64. the device detects clock ratios automatically, and it will not work properly if any ratio is incorrect. audio data input the ES7134 can accept i2s serial audio input da ta from 16-bit to 24-bit. the device can detect the data word length automatically. the relationship of sdata, sclk and lrck for the format is illustrated through figures 2. 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 power up and power down upon applying vdd, the device will reset itse lf and enter power down state. during this state, the device clamps outputs to ground a nd power down the device operation except for clock management unit. once proper clkin and lrck clocks are applied, the device will leave power down state, and the device output s ramp from ground to common mode voltage softly. then the device enters the normal operation . table 1 auto detection ranges and clkin/lrck ratio figure 2 i2s serial audio data format up to 24-bit
everest semiconductor co., ltd. ES7134 rev 1.0 march, 2007 4 4. electrical characteristics absolute maximum ratings at or beyond this condition, operating continuo usly may cause permanent damage to the device. the performance and f unctions of the device are not guaranteed at these extremes. parameter min max supply voltage level -0.3v +7.0v input voltage range gnd-0.3v vdd+0.3v operating temperatur e range -40c +85c storage temperature -65c +150c recommended operating conditions parameter min typ max unit supply voltage level 4.5 5.0 5.5 v analog characteristics test conditions: vdd=5.0v, gnd=0v, ambient temperature=25c, fs=48khz, clkin/lrck=256, input 0db 1khz sinewave parameter min typ max unit dac performance dynamic range (note 1) 90 95 db thd+n -85 -80 db channel separation (1khz) 100 db signal to noise ratio 95 db interchannel gain mismatch 0 db frequency response (20hz-20khz) -0.02 +0.08 db filter frequency response characteristics single speed passband 0 0.454 fs stopband 0.547 fs passband ripple 0.05 db stopband attenuation -53 db double speed passband 0 0.417 fs stopband 0.583 fs passband ripple 0.005 db stopband attenuation -56 db
everest semiconductor co., ltd. ES7134 rev 1.0 march, 2007 5 quad speed passband 0 0.2083 fs stopband 0.792 fs passband ripple 0.006 db stopband attenuation -50 db analog output characteristics full scale output level 3.25 3.5 3.75 vpp output impedance 120 ? minimum load resistance 2 k ? maximum capacitance 100 pf note 1. a-weighted filter is used in measurement.
everest semiconductor co., ltd. ES7134 rev 1.0 march, 2007 6 serial audio port switching characteristics parameter symbol min max unit clkin frequency 51.2 mhz clkin 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 dc characteristics parameter min typ max unit normal operation mode vdd current vdd=5.0v 25.0 30.0 ma power dissipation vdd=5.0v 125.0 150.0 mw digital voltage level input high-level voltage 2.0 v input low-level voltage 0.8 v output high-level voltage vdd v output low-level voltage 0 v fi g ure 3 serial audio port timin g
everest semiconductor co., ltd. ES7134 rev 1.0 march, 2007 7 5. package information 8-pin soic (150mil) outline dimensions a b c d e seating plane base plane f g h i j k l dimensions (inch) dimensions (mm) symbols min typ max min typ max a 0.2300 --- 0.2440 5.842 --- 6.198 b --- 0.050 --- --- 1.270 --- c 0.0600 --- 0.0680 1.524 --- 1.727 d 0.0138 --- 0.0200 0.351 --- 0.508 e 0.1890 --- 0.1950 4.801 --- 4.953 f 0.055 --- 0.061 1.397 --- 1.549 g 0.0040 --- 0.0098 0.102 --- 0.249 h 0.0160 --- 0.0350 0.406 --- 0.889 i 0.1520 --- 0.1574 3.861 --- 3.998 j 0.0100x45 o --- 0.0160 x45 o 0.254 x45 o --- 0.406 x45 o k 0.0075 --- 0.0098 0.190 --- 0.250 l 0 o --- 8 o 0 o --- 8 o note: 1. reference jedec ms-012 (c), var. aa
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