asahi kasei [akd4380] ?04/09 - 1 - general description the akd4380 is an evaluation board for ak4380, which is 96khz sampling 24bit ? dac. akd4380 has the interface with akm?s wave generator using rom data and with akm?s a/d converter evaluation boards. therefore, it is easy to evaluate the ak4380. the akd4380 also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector or rca connector. ? ordering guide akd4380 --- evaluation board for ak4380 function ? compatible with 2 types of interface -direct interface with akm?s a/d conver ter evaluation boards (539x,535x) ,and direct interface with a signal generator (akd43xx) - on-board cs8414 as dir which accepts optical or rca input. ? bnc connector for an external cl ock input by 10 pin hearder. 10pin header external clock rom data or a/d input optical input cs8414 (dir) clock generator ak4380 rch lch figure 1. akd4380 block diagram evaluation board rev.a for ak4380 akd4380
asahi kasei [akd4380] ?04/09 - 2 - ? analog output analog signal is output through bnc connectors on the board. and the output level of ak4380 is 3.45vpp. ? operation sequence 1) set up the power supply lines. [va] (red) = 4.5 5.5v [vd] (red) = 4.5 5.5v [agnd] (black) = 0v [dgnd] (black) = 0v each supply line should be distri buted from the power supply unit. 2) set up the evaluation mode, jumper pins and dip switches. (see the followings.) 3) power on. the ak4380 should be reset once bringing upon power-up ? evaluation mode applicable evaluation modes 1) dir (optical link and rca) (default) 2) using rom data (ak43xx) 3) using akm?s evaluation board for adc 4) feeding all signals from external 1) dir(optical link) port3(torx176) or j3(rca) is used. all clock ar e supplied from cs8414(dir). dir generates mclk, bick, lrck and sdata from the received data through optical connector (torx176) or rca connector. used for the evaluation using cd test disk. nothing should be connected to port2. in case of using optical connector (torx176), select ?opt? on jp14(dir/rx). in case of using rca connector, select ?rx?. jp12 mclk jp11 dir jp3 bick di r a d c jp4 lrck jp10 dir_dat a jp9 sdti di r a d c dir x tl ext gn d vd dat a gnd jp13 xte 2) ideal sine wave generated by rom data connect the akd43xx with port2(adc/rom). akd4380 sends mclk to akd43xx, and receives lrck, bick and sdata. in case of using external master clock through a bnc connector, select ?bnc? on jp12(mclk) and short jp13(xte). jp12 mclk jp11 dir jp3 bick di r a d c jp4 lrck jp10 dir_dat a jp9 sdti di r a d c dir x tl ext gn d vd dat a gnd jp13 xte
asahi kasei [akd4380] ?04/09 - 3 - 3) using akm?s eval uation board for adc to evaluate ak4380 with analog input, the akm?s evaluation board for adc can be used. mclk, bick and lrck are supplied from clock generator on the akd4380, and analog signal is a/d converted and send to akd4380 through port2(adc/rom). in case of using external master clock through a bnc connector, select ?bnc? on jp12(mclk) and short jp13(xte). jp12 mclk jp11 dir jp3 bick di r a d c jp4 lrck jp10 dir_dat a jp9 sdti di r a d c dir x tl ext gn d vd dat a gnd jp13 xte 4) feeding all signals from external under the following set-up, all external signals can be fed through potr2. jp12 mclk jp11 dir jp3 bick di r a d c jp4 lrck jp10 dir_dat a jp9 sdti di r a d c dir x tl ext gn d vd dat a gnd jp13 xte ? clock (mclk,bick,lrck) set up in case of using evaluation mode 1), jp9,10 and 17 should be set up as follows. they need no care for other evaluation mode. mclk jp5 (x_mclk) jp8 (x_lrck) bick jp7 (x_bick) 128fs 256/128 lr_128 32fs 64fs 64fs/32fs 128fs/64fs 256fs 256/128 lr_256/512 32fs 64fs 128fs 32fs 64fs/32fs 128fs/64fs default 512fs 512 lr_256/512 32fs 64fs 128fs 32fs 64fs/32fs 128fs/64fs table 1. clock set up
asahi kasei [akd4380] ?04/09 - 4 - port1 up-i/f 1 2 9 10 csn cclk cdti ? dip switch set up [sw4](mode1): no.1 to 2 set the mode of ak4380 and no.3 to 5 set the mode of cs8414. no. pin off on 1 dfs0 normal speed double speed 2 dif0 24bit, msb justified i2s 3 m2 4 m1 5 m0 digital interface format of cs8414 (see table 4.) (note) table 2. sw3 set-up (note: m2-0 should be selected at only evaluation mode 1. in other mode, these should be ?off?.) 3 4 5 6 7 8 jp6 mode format dif 0 dif 1 dif 2 m2 m1 m0 bick2 0 16bit, lsb justified 0 0 0 1 0 1 thr 1 20bit, lsb justified 1 0 0 - - - - 2 24bit, msb justified 0 1 0 0 0 0 inv 3 i2s 1 1 0 0 1 0 thr default 4 24bit, lsb justified 0 0 1 - - - - table 3. digital interface format set-up (1=on, 0=off) (cs8414 does not correspond to 20/24bit lsb justified format.) ? other jumper pins set up [jp1] (gnd): analog ground and digital ground open: separated short: agnd and dgnd are connected. [jp2] (dzf) mute circuit on: used . analog output are muted when dzf=?h?. off: not used. [jp6] (bick_ phase): phase of bclk thr: bick is coincides with ak4380. inv: bick is inverted. ? the function of the toggle sw. [sw1](pdn): resets the ak4380. keep ?h? during normal operation. [sw2](smute): soft mute of ak4380. bring ?h? when using soft mute. [sw3](p/s): h: parallel mode. l: serial mode. ? indication for led [led1] (verf): monitor verf pin of the cs8414. led turns on when some error has occurred to cs8414. [led2]: (prem): indicate whether the input data of cs8414 is pre-emphasized or not. ? serial control mode the ak4380 can be controlled via the printer port (parallel port) of ibm-at compatible pc. connect port1(up-i/f) with pc by 10-line flat cable packed with the akd4380. take care of the direction of connector. there is a mark at 1pin. the pin layout of port1 is as figure 2. figure 2. port1 pin layout
asahi kasei [akd4380] ?04/09 - 5 - measurement results [measurement condition] ? measurement unit : audio precision system two cascade ? mclk : 256fs ? bick : 64fs ? fs : 44.1khz, 96khz ? bw : 10hz 20khz (fs=44.1khz), 10hz 40khz (fs=96khz) ? bit : 24bit ? power supply : vdd=5v ? interface : dir (fs=44.1khz, 96khz) ? temperature : room parameter input signal measurement filter fs=44.1khz s/(n+d) 1khz, 0db 20klpf 94.0db 22klpf 97.2db dr 1khz, -60db 22klpf, a-weighted 100.0db 22klpf 97.2db s/n no signal 22klpf, a-weighted 100.0db parameter input signal measurement filter fs=96khz s/(n+d) 1khz, 0db 40klpf 92.3db 40klpf 94.5db dr 1khz, -60db 22klpf, a-weighted 97.2db 40klpf 94.5db s/n no signal 22klpf, a-weighted 97.2db
asahi kasei [akd4380] ?04/09 - 6 - (fs=44.1khz) akm ak4380 rev.a fft (input=0dbfs, fin=1khz) -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 20 20k 50 100 200 500 1k 2k 5k 10k hz akm ak4380 rev.a fft (input=-60dbfs, fin=1khz) -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 20 20k 50 100 200 500 1k 2k 5k 10k hz
asahi kasei [akd4380] ?04/09 - 7 - (fs=44.1khz) akm ak4380 rev.a fft (input="0"data, fin=1khz) -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 20 20k 50 100 200 500 1k 2k 5k 10k hz ak4380 rev.a fft(input="0" data, hibw) -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 20 100k 50 100 200 500 1k 2k 5k 10k 20k 50k hz
asahi kasei [akd4380] ?04/09 - 8 - (fs=44.1khz) akm ak4380 rev.a thd + n vs amplitude (fin=1khz) -150 +0 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs -110 -70 -108 -106 -104 -102 -100 -98 -96 -94 -92 -90 -88 -86 -84 -82 -80 -78 -76 -74 -72 d b r a akm ak4380 rev.a thd + n vs input frequency (fin=1khz) 20 20k 50 100 200 500 1k 2k 5k 10k hz -110 -70 -108 -106 -104 -102 -100 -98 -96 -94 -92 -90 -88 -86 -84 -82 -80 -78 -76 -74 -72 d b r a
asahi kasei [akd4380] ?04/09 - 9 - akm ak4380 rev.a linearity -150 +0 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs -150 +0 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a akm ak4380 rev.a frequency response 2k 20k 4k 6k 8k 10k 12k 14k 16k 18k hz -0.5 +0.5 -0.45 -0.4 -0.35 -0.3 -0.25 -0.2 -0.15 -0.1 -0.05 +0 +0.05 +0.1 +0.15 +0.2 +0.25 +0.3 +0.35 +0.4 +0.45 d b r a
asahi kasei [akd4380] ?04/09 - 10 - (fs=44.1khz) akm ak4380 rev.a crosstalk 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz -120 -70 -117.5 -115 -112.5 -110 -107.5 -105 -102.5 -100 -97.5 -95 -92.5 -90 -87.5 -85 -82.5 -80 -77.5 -75 -72.5 d b r a
asahi kasei [akd4380] ?04/09 - 11 - (fs=96khz) akm ak4380 rev.a fft (input=0dbfs,fin=1khz) 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a akm ak4380 rev.a fft (input=-60dbfs,fin=1khz) 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a
asahi kasei [akd4380] ?04/09 - 12 - (fs=96khz) akm ak4380 rev.a fft (input="0"data,fin=1khz) 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a
asahi kasei [akd4380] ?04/09 - 13 - (fs=96khz) akm ak4380 rev.a thd + n vs amplitude(fin=1khz) -150 +0 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs -110 -70 -108 -106 -104 -102 -100 -98 -96 -94 -92 -90 -88 -86 -84 -82 -80 -78 -76 -74 -72 d b r a akm ak4380 rev.a thd + n vs input frequency(input=0dbfs) 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz -110 -70 -108 -106 -104 -102 -100 -98 -96 -94 -92 -90 -88 -86 -84 -82 -80 -78 -76 -74 -72 d b r a
asahi kasei [akd4380] ?04/09 - 14 - (fs=96khz) akm ak4380 linearity -150 +0 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a -150 +0 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs akm ak4380 rev.a frequency response 2.5k 40k 5k 7.5k 10k 12.5k 15k 17.5k 20k 22.5k 25k 27.5k 30k 32.5k 35k 37.5k hz -0.5 +0.5 -0.45 -0.4 -0.35 -0.3 -0.25 -0.2 -0.15 -0.1 -0.05 +0 +0.05 +0.1 +0.15 +0.2 +0.25 +0.3 +0.35 +0.4 +0.45 d b r a
asahi kasei [akd4380] ?04/09 - 15 - akm ak4380 rev.a crosstalk 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz -120 -70 -117.5 -115 -112.5 -110 -107.5 -105 -102.5 -100 -97.5 -95 -92.5 -90 -87.5 -85 -82.5 -80 -77.5 -75 -72.5 d b r a
5 5 4 4 3 3 2 2 1 1 d d c c b b a a h analog ground digital ground for 74hcu04,74ac74 , 74hc14, 74hc 4040 csn cdti cclk l h dfs dif0 m0 m1 m2 p s ak4380 a akd4380 a3 12 monday, sept ember 27, 1999 title size document number rev date: sheet of mclk bick sdti lrck aoutl aoutr dzf p/s m0 smute m2 p/s m1 smute va2 dir_vd vd va vd vd vd vd vd d1 sw1 pdn r9 220 r1 220 jp1 gnd r4 10k u3b 74hc14 3 4 r8 (short) r7 (short) r6 (short) r5 (short) r3 (short) + c25 10u + c12 10u u2 74hc541 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 r13 2.2k port1 up-i/f 10 8 6 4 2 1 3 5 7 9 r15 51 u4 74hc157 2 3 5 6 11 10 14 13 1 15 4 7 9 12 1a 1b 2a 2b 3a 3b 4a 4b a/b g 1y 2y 3y 4y r16 51 r11 2.2k r12 2.2k r14 51 u3a 74hc14 1 2 c13 0.1u c1 0.1u c2 0.1u c3 0.1u c4 0.1u + c5 47u d2 sw2 smute r17 10k u3e 74hc14 11 10 u3f 74hc14 13 12 c14 0.1u u3c 74hc14 5 6 u3d 74hc14 9 8 l2 10u 1 2 rp1 47k 5 4 3 2 1 sw4 mode 1 2 3 4 5 10 9 8 7 6 l1 (short) 1 2 r2 27k + c9 10u c10 0.1u + c6 47u r10 27k c11 0.1u + c8 10u sw3 p/s ak4380 u1 1 2 3 4 5 6 7 8 10 11 12 15 14 13 16 9 mclk bick sdti lrck pdn csn/smute cclk/dfs cdti/dif0 aoutr aoutl vcom vref vdd vss dzf p/s
5 5 4 4 3 3 2 2 1 1 d d c c b b a a vd gnd rx opt ad/rom sdata mclk lrck bick thr inv xtl bnc dir 32fs 64fs/32fs 128fs/64fs adc dir dir adc data gnd on off (10k ,10k) (10k ,10k) lr_256/512 lr_128 256/128 512 interface a akd4380 a3 22 thursday, october 14, 1999 title size document number rev date: sheet of x_bick dir_lrck lrck bick m0 m2 x_bick m1 sdti dir_bick x_lrck va2 dzf aoutl aoutr x_lrck dir_ bick dir_lrck mclk dir_vd vd vd vd vd vd u6c 74hcu04 5 6 r22 1k jp10 dir_data r24 1k r23 1m u6f 74hcu04 13 12 u6d 74hcu04 9 8 u6e 74hcu04 11 10 r20 10k jp11 dir 1 2 3 l4 47u 1 2 x1 11.2896mhz 1 2 jp3 lrck jp4 bick r18 10k jp2 dzf tr1 rn1202 1 3 2 tr3 2sc3327 1 3 2 j1 aoutl r19 10k j2 aoutr tr4 2sc3327 1 3 2 u6a 74hcu04 1 2 jp6 bick_phase 1 2 3 jp12 mclk jp8 x_lrck led1 verf 2 1 led2 prem 2 1 j3 rca r26 75 u7a 74ac74 2 3 5 6 4 1 d clk q q pr cl jp7 x_bick c21 0.01u port3 torx176 1 3 4 2 6 5 out vcc gnd gnd 6 5 u8 cs8414 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 c cd/f1 cc/f0 cb/e2 ca/e1 c0/e0 vd+ dgnd rxp rxn fsync sck cs12/fck u cbl sel m3 m2 mck filt agnd va+ m0 m1 erf sdata ce/f2 vref c23 0.01u c22 0.1u port2 adc/rom 1 2 3 4 5 6 7 8 9 10 r25 1k + c15 10u u6b 74hcu04 3 4 c18 0.1u jp9 sdti 1 2 3 jp13 xte jp14 dir/rx 1 2 3 l3 10u 1 2 r27 51 u5 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 j4 bnc c19 (open) c20 (open) tr2 rn2202 1 3 2 u7b 74ac74 12 11 9 8 10 13 d clk q q pr cl c16 0.1u r21 1k + c17 10u c24 47n jp5 x_mclk
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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