asahi kasei [AKD5353] 99/11 - 1 - general description AKD5353 is an evaluation board for 96khz 24bit a/d converter ak5353. AKD5353 includes the input buffer circuit and also has a digital interface transmitter. further, the AKD5353 can evaluate direct interface with akms d/a converter evaluation boards. n ordering guide AKD5353 --- evaluation board for ak5353 function on-board single-ended input buffer circuit on-board clock generator compatible with 2 types of interface - direct interface with akms d/a converter evaluation boards - on-board cs8402 as dit which transmits optical output bnc connector for an external clock input ak5353 input buffer 2.7 ~ 5.5v gnd lch rch cs8402 (dit) clock generator opt out d/a data 10pin header figure 1. AKD5353 block diagram * circuit diagram and pcb layout are attached at the end of this manual. evaluation board rev.b for ak5353 AKD5353
asahi kasei [AKD5353] 99/11 - 2 - n analog inputs j1(ainl) and j2(ainr) are used. the analog inputs are single-ended and each signal range is nominally 3.0vpp@5v. it is proportional to va (vin=0.6xva). n operation sequence 1) set up the power supply lines. [va] (red) = 2.7 ~ 5.5v : for va of ak5353 [3v] (orange) = 2.7 ~ 5.5v : for vd of ak5353 [5v] (red) = 3.4 ~ 5.5v : for logic [agnd] (black)= 0v : for analog ground (including agnd and dgnd of ak5353) [dgnd] (black)= 0v : for logic ground each supply line should be distributed from the power supply unit. 2) set up the evaluation mode, jumper pins and dip switches. (see the followings.) 3) power on. the ak5353 should be reset once bringing sw4 (5353_pd) l upon power-up. n evaluation mode 1) dit (optical link) port1 (totx174) is used. dit generates audio bi-phase signal from received data and which is output through optical connector (totx174). it is possible to connect akms d/a converter evaluation boards on the digital-amplifier which equips dir input. jp6 and jp7 should be selected same mode as ak5353. in case of using external clock through a bnc connector (j3), select bnc on jp5(clk) and short jp4(xte). jp4 xte jp5 clk jp6 mclk jp7 sclk xtl bnc 512fs 256fs 32fs 64fs 128fs jp9 lrck 2) using d/a converter board the ak5353 can be evaluated by distortion analyzer using various akms d/a converter evaluation boards. they can be connected by 10pin flat cable via port2(dac/rom). if the AKD5353 feeds all interface signals (mclk,bick,lrck) to d/a converter board, jumper set up is same as 1) (see above). if all interface signals are fed from d/a converter board, jumper set up is same as 3) (see below).
asahi kasei [AKD5353] 99/11 - 3 - 3) all interface signals (mclk,sclk,lrck) are fed from the external circuit through port2 port2 (dac/rom) is used. jp5,7 and 9 should be open. selection of jp6 is no care but should not be open. jp4 xte jp5 clk jp6 mclk jp7 sclk xtl bnc 512fs 256fs 32fs 64fs 128fs jp9 lrck n other jumper pins set up [jp1](vd): vd of ak5353 3v: independent of va va: same as va (the connector 3v should be open.) [jp2](dgnd-agnd): analog ground and digital ground open: separated short: common (the connector dgnd can be open.) [jp3](5v-3v): vd of ak5353 and power supply to logic open: independent short: same (the connector 3v should be open.) [jp8](8402_dif): always msb n the function of the toggle sw. upper-side is h and lower-side is l. [sw2]: resets the cs8402. keep h during normal operation. [sw4]: resets the ak5353. keep h during normal operation. n dip switch set up. [sw3]: sets the mode of ak5353. no. pin on off (default) 1 dif i2s msb justified 2 ttl ttl interface cmos interface table 1. dip switch set-up of ak5353 jp1 vd 3v va jp2 dgnd agnd jp3 5v 3v jp8 8402_dif msb i2s
asahi kasei [AKD5353] 99/11 - 4 - [sw1]: sets the c-bit of cs8402. (default is the consumer mode.) this set up does not affect the evaluation of the ak5353. in case of using dit, need to set it up correctly. for more detailed configurations, please refer to the cs8402 data sheet. switch off=0, on=1 contents 8 pro =0 professional mode, c0=1 7,6 c6 ,c7 c6,c7 C sampling frequency 11 10 01 00 00 C not indicated. receiver default to 48khz. 01 C 48khz 10 C 44.1khz 11 C 32khz 5c9 c8,c9,c10,c11 C 1bit of channel mode 1 0 0000 C mode not indicated. receiver default to 2-channel mode. 0100 C stereophonic. 4c1 c1 C audio mode 1 0 0 C normal audio 1 C non-audio 3 trnpt transparent mode *cs8402 is cre 0 1 normal mode transparent mode 1,2 em1, em0 c2,c3,c4 C encoded audio signal emphasis 11 10 01 00 000 C emphasis not indicated. receiver defaults to no emphasis with manual override enabled. 100 C none 110 C 50/15usec 111 C ccitt j.17 table 2. dip switch set-up of cs8402 (professional mode) switch off=0, on=1 contents 8 pro =1 consumer mode, c0=0 7c2 c2 C copy default 1 0 0 C copy inhibited 1 C copy permitted 6c3 c3,c4,c5 C pre-emphasis default 1 0 000 C none 100 C 50/15usec 5 c15 c15 C general status default 1 0 0 C see the standard 1 C see the standard 3,4 fc1,fc0 c24,c25,c26,c27 C sampling frequency default 00 01 10 11 0000 C 44.1khz 0100 C 48khz 1100 C 32khz 0000 C 44.1khz, cd mode 1,2 c8 ,c9 c8-c14 C category code default 11 10 01 00 0000000 C general 0100000 C pcm encoder/decoder 1000000 C cd 1100000 C dat table 3. dip switch set-up of cs8402 (consumer mode; default)
asahi kasei [AKD5353] 99/11 - 5 - measurement results [measurement condition] measurement unit : rohde & schwarz, upd04 mclk : 256fs bick : 64fs fs : 48khz bw : 20hz ~ 20khz (fs=48khz), 40hz ~ 40khz (fs=96khz) bit : 24bit power supply : va=vd=5v or 3v interface : dit (fs=48khz), serial multiplex (fs=96khz) temperature : room parameter input signal measurement filter 5v, 48khz 3v, 48khz s/(n+d) 1khz, -1db 20klpf 83.3db 90.4db dr 1khz, -60db 20klpf, a-weighted 98.4db 95.3db s/n no signal 20klpf, a-weighted 98.6db 95.3db parameter input signal measurement filter 5v, 96khz s/(n+d) 1khz, -1db 40klpf 84.7db dr 1khz, -60db 40klpf 95.3db s/n no signal 40klpf 95.3db [measurement condition] measurement unit : audio precision, system two mclk : 256fs bick : 64fs fs : 48khz bw : 20hz ~ 20khz bit : 24bit power supply : va=vd=5v or 3v interface : dit temperature : room parameter input signal measurement filter 5v, 48khz 3v, 48khz s/(n+d) 1khz, -1db 20klpf 83.3db 88.8db dr 1khz, -60db 20klpf, a-weighted 97.5db 94.6db s/n no signal 20klpf, a-weighted 97.8db 94.6db
asahi kasei [AKD5353] 99/11 - 6 - n plots [measurement condition] measurement unit : audio precision, system two, cascade (fs=48khz), rohde & schwarz, upd04 (fs=96khz) mclk : 256fs bick : 64fs fs : 48khz or 96khz bw : 20hz ~ 20khz (fs=48khz), 40hz ~ 40khz (fs=96khz) bit : 24bit power supply : va=vd=5v interface : dit (fs=48khz), serial multiplex (fs=96khz) temperature : room fs=48khz figure 2. thd+n vs input level (fin=1khz) figure 3. thd+n vs fin (-1dbfs input) figure 4. linearity (fin=1khz) figure 5. frequency response (-1dbfs input) figure 6. cross-talk (-1dbfs input) figure 7. fft (1khz, -1dbfs input) figure 8. fft (1khz, -60dbfs input) figure 9. fft (noise floor) fs=96khz figure 10. thd+n vs input level (fin=1khz) figure 11. thd+n vs fin (-1dbfs input) figure 12. linearity (fin=1khz) figure 13. frequency response (-1dbfs input)
asahi kasei [AKD5353] 99/11 - 7 - figure 2. thd+n vs input level (fs=48khz; fin=1khz) figure 3. thd+n vs fin (fs=48khz; -1dbfs input) akm ak5353 thd+n vs input level (fs=48khz, fin=1khz) -120 -10 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 dbr -100 -80 -98 -96 -94 -92 -90 -88 -86 -84 -82 d b f s akm ak5353 thd+n vs fin (fs=48khz, -1dbfs input) 20 20k 50 100 200 500 1k 2k 5k 10k hz -100 -80 -98 -96 -94 -92 -90 -88 -86 -84 -82 d b f s
asahi kasei [AKD5353] 99/11 - 8 - figure 4. linearity (fs=48khz; fin=1khz) figure 5. frequency response (fs=48khz; -1dbfs input) akm ak5353 linearity (fs=48khz, fin=1khz) -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbr -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b f s akm ak5353 frequency response (fs=48khz, -1dbfs input) 20 20k 50 100 200 500 1k 2k 5k 10k hz -1.5 -0.5 -1.4 -1.3 -1.2 -1.1 -1 -0.9 -0.8 -0.7 -0.6 d b f s
asahi kasei [AKD5353] 99/11 - 9 - figure 6. cross-talk (fs=48khz; -1dbfs input) figure 7. fft (fs=48khz; 1khz, -1dbfs input) fft point=16384, avg=8 akm ak5353 cross-talk (fs=48khz, -1dbfs input) 20 20k 50 100 200 500 1k 2k 5k 10k hz -100 -80 -98 -96 -94 -92 -90 -88 -86 -84 -82 d b f s akm ak5353 fft (fs=48khz, 1khz, -1dbfs input) fft point=16384, avg=8 20 20k 50 100 200 500 1k 2k 5k 10k hz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b f s
asahi kasei [AKD5353] 99/11 - 10 - figure 8. fft (fs=48khz; 1khz, -60dbfs input) fft point=16384, avg=8 figure 9. fft (noise floor; fs=48khz, no signal input) fft point=16384, avg=8 akm ak5353 fft (fs=48khz, 1khz, -60dbfs input) fft point=16384, avg=8 20 20k 50 100 200 500 1k 2k 5k 10k hz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b f s akm ak5353 fft (noise floor; fs=48khz, no signal input) fft point=16384, avg=8 20 20k 50 100 200 500 1k 2k 5k 10k hz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b f s
asahi kasei [AKD5353] 99/11 - 11 - figure 10. thd+n vs input level (fs=96khz; fin=1khz) figure 11. thd+n vs fin (fs=96khz; input level=-1dbfs)
asahi kasei [AKD5353] 99/11 - 12 - figure 12. linearity (fs=96khz; fin=1khz) figure 13. frequency response (fs=96khz; input level=-1dbfs) * including input rc filter (fc=154khz) response
5 5 4 4 3 3 2 2 1 1 d d c c b b a a 256fs xtl mclk sclk lrck sdto dac/rom cks dif0 dif1 pro c6/c2 c7/c3 c9/c15 c1/f0 tr/f1 e0/c9 e1/c8 h l ttl dif l h 256fs 512fs fs 128fs 3v va agnd dgnd for 74hcu04, 74hc14, 74hct541, 74hc74, 74hc4040 for 74lvc541 bnc msb i2s 64fs 32fs 5v 3v 32fs 64fs 128fs ak5353 b AKD5353 a3 11 thursday, september 09, 1999 title size document number rev date: sheet of dit_bus [0-7] dit_ bus5 dit_ bus6 dit_bus4 dit_bus2 dit_ bus4 dit_ bus7 dit_ bus3 dit_ bus6 dit_bus7 dit_bus1 dit_ bus0 dit_ bus7 dit_bus6 dit_bus1 dit_ bus1 dit_bus0 dit_bus0 dit_bus4 dit_bus2 dit_bus3 dit_bus5 dit_ bus2 dit_ bus5 dit_bus3 dif lrck 128fs sdto dif dif sclk lrck lrck sclk 128fs mclk mclk sclk lrck sdto sdto vd vd sclk mclk 3v 5v 5v 5v 5v 5v va 5v 5v 5v va 3v x1 12.28 8mhz 1 2 r12 1m jp4 xte r10 10k j3 bnc r13 51 u6a 74hc74 2 5 3 6 4 1 dq clk q pr cl u7c 74hcu04 5 6 port2 dac/rom 1 2 3 4 5 6 7 8 9 10 r1 1k c1 0.1u c15 0.1u rp1 47k 1 2 3 4 5 6 7 8 9 r3 10k sw2 8402_rst 2 1 3 d1 1s1588 c11 0.1u u2 cs8402 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 c7/c3 pro c1/f0 c6/c2 mck sck fsync sdata v c/sbf u c9/c15 e1/c8 e0/c9 cb/sb rst txn gnd vd+ txp m0 m1 m2 tr/f1 r5 (open) l2 (short) 1 2 c26 0.1u j2 ainr c6 0.1u r6 470 + c13 22u + c3 10u + c10 22u r8 4.7k r9 4.7k u1c 74hc14 5 6 sw4 5353_pd 2 1 3 d2 1s1588 r11 10k c21 0.1u c22 0.1u c18 0.1u + c16 47u c19 0.1u port1 totx174 1 2 3 4 5 6 gnd if vcc in 5 6 sw1 8402_mode 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 c5 0.1u c20 0.1u + c17 47u u7b 74hcu04 3 4 u7a 74hcu04 1 2 c23 0.1u r4 470 r2 5.1 + c2 10u c7 0.1u c14 2.2n u3 74hct541 2 3 4 5 6 7 8 9 1 19 18 17 16 15 14 13 12 11 a1 a2 a3 a4 a5 a6 a7 a8 g1 g2 y1 y2 y3 y4 y5 y6 y7 y8 jp3 l1 (short) 1 2 u1b 74hc14 3 4 sw3 5353_mode 1 2 4 3 u1a 74hc14 1 2 u1e 74hc14 11 10 u1d 74hc14 9 8 c9 0.1u + c8 4.7u + c27 4.7u jp5 clk jp7 sclk jp9 lrck 1 2 u8 74hc4040 10 11 9 7 6 5 3 2 4 13 12 14 15 1 clk rst q1 q2 q3 q4 q5 q6 q7 q8 q9 q10 q11 q12 u5 74lvc541 2 3 4 5 6 7 8 9 1 19 18 17 16 15 14 13 12 11 a1 a2 a3 a4 a5 a6 a7 a8 g1 g2 y1 y2 y3 y4 y5 y6 y7 y8 jp6 mclk 1 2 3 jp1 vd 1 2 3 j1 ainl c25 (open) c12 2.2n r7 (open) c24 (open) jp2 1 2 + c4 47u u4 ak5353 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ainr ainl vref vcom agnd va vd dgnd sdto lrck mclk sclk pdn dif ttl tst u1f 74hc14 13 12 jp8 8402_dif
important notice these products and their specifications are subject to change without notice. before considering any use or application, consult the asahi kasei microsystems co., ltd. (akm) sales office or authorized distributor concerning their current status. akm assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein. any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials. akm products are neither intended nor authorized for use as critical components in any safety, life support, or other hazard related device or system, and akm assumes no responsibility relating to any such use, except with the express written consent of the representative director of akm. as used here: (a) a hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. (b) a critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. it is the responsibility of the buyer or distributor of an akm product who distributes, disposes of, or otherwise places the product with a third party to notify that party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold akm harmless from any and all claims arising from the use of said product in the absence of such notification.
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