asahi kasei [AKD5354] 00/06 - 1 - general description AKD5354 is an evaluation board for the portable digital audio 20bit a/d converter, ak5354. the AKD5354 includes the input circuit and also has a digital interface transmitter. further, the AKD5354 can evaluate direct interface with akms d/a converter evaluation board. n ordering guide AKD5354 --- evaluation board for ak5354 (cable for connecting with printer port of ibm-at, compatible pc and control software are packed with this.) function compatible with 2 types of interface - direct interface with akms d/a converter evaluation boards - on-board ak4353 as dit which transmits optical output bnc connector for an external clock input lin1/2 ak4353 clock generator vd va gnd rin1/2 ak5354 (dit) opt out 10pin header d/a data rom data control data 10pin header figure 1. AKD5354 block diagram * circuit diagram and pcb layout are attached at the end of this manual. evaluation board rev.a for ak5354 AKD5354
asahi kasei [AKD5354] 00/06 - 2 - 1. evaluation board manual n input circuit & set-up jumper pin for input circuits (1) line block (a) lin1,2/rin1,2 input circuit rin1 rin2 lin2 lin1 j1 lin r1 560 + c1 10u j2 rin r3 560 + c3 10u jp1 lin jp2 rin lin1 lin2 rin1 rin2 figure 2. lin1,2/rin1,2 input circuit on board 1. analog signal is input to lin1 and rin1 pins via j1 and j2 connectors. jp1 lin lin2 lin1 jp2 rin rin2 rin1 2. analog signal is input to lin2 and rin2 pins via j1 and j2 connectors. jp1 lin lin2 lin1 jp2 rin rin2 rin1 (2) other jumper pins 1. jp3 (vd) : vd of ak5354 va : supplied from va connector via 10 w . vd : supplied from d2v connector. 2. jp4 (gnd) : analog ground and digital ground open : separated short : common (the connector dgnd can be open.) * akm assumes no responsibility for the trouble when using the circuit examples.
asahi kasei [AKD5354] 00/06 - 3 - n operation sequence 1) set up the power supply lines. [va] (orange) = 2.2 ~ 3.3v : for va of ak5354 (typ. 2.5v) [d2v] (orange) = 1.8 ~ 3.3v : for d2v of 74lvc541 (typ. 2.5v) [vcc] (red) = 3.6 ~ 5.0v : for logic [agnd] (black) = 0v : for analog ground (including vss of ak5354) [dgnd] (black) = 0v : for logic ground each supply line should be distributed from the power supply unit. d2v and va must be same voltage level. 2) set up the evaluation mode, jumper pins and dip switches. (see the followings.) note : evaluation mode of the ak5354 is fixed to i 2 s compatible on the board. 3) power on. the ak5354 and ak4353 should be reset once bringing sw1 = sw2 = l upon power-up. n evaluation mode applicable evaluation mode (1) evaluation of a/d using dit (optical link) (2) evaluation of a/d using d/a converted data (3) all interface signals including master clock are fed externally. (1) evaluation of a/d using dit (optical link) port1 (dit) is used. dit generates audio bi-phase signal from received data and which is output through optical connector (totx176). it is possible to connect akms d/a converter evaluation boards on the digital- amplifier which equips dir input. nothing should be connected to port3 (rom). in case of using external clock through a bnc connector (j3), select ext on jp6 (clk) and short jp5 (xte) and open jp7 (ext). jp5 xte jp6 clk ext xtl jp7 ext (2) evaluation of a/d using d/a converted data it is possible to make evaluation in the form of analog inputs and analog outputs by interfacing with various akms d/a evaluation boards with port3 (rom). jp5 xte jp6 clk ext xtl jp7 ext
asahi kasei [AKD5354] 00/06 - 4 - (3) all interface signals including master clock are fed externally. under the following set-up, all external signals needed for the ak5354 to operate could be fed through port3 (rom). jp5 xte jp6 clk ext xtl jp7 ext n the function of the toggle sw upper-side is h and lower-side is l. [sw1] (pdn): resets the ak5354. keep h during normal operation. [sw2] (dit): resets the ak4353. keep h during normal operation. n serial control the ak5354 can be controlled via the printer port (parallel port) of ibm-at compatible pc. connect port2(ctrl) with pc by 10-line flat cable packed with the AKD5354. take care of the direction of connector. there is a mark pin#1 to connector. connect csn cclk cdti 10pin header 10pin connector 10 wire flat cable pc AKD5354 figure 3. connect of 10-line flat cable
asahi kasei [AKD5354] 00/06 - 5 - 2. control software manual n set-up of evaluation board and control software 1. set up the AKD5354 according to previous term. 2. connect ibm-at compatible pc with AKD5354 by 10-line type flat cable (packed with AKD5354). take care of the direction of 10pin header. (this control software does not operate on windows nt, therefore please operate it on windows95/98.) 3. insert the floppy-disk labeled AKD5354 control program ver 1.0 into the floppy-disk drive. 4. access the floppy-disk drive and double-click the icon of AKD5354.exe to set up the control program. 5. then please evaluate according to the follows. n explanation of each buttons 1. [port setup] : set up the printer port. 2. [write default] : initialize the register of ak5354. 3. [function1] : dialog to write data by keyboard operation. 4. [function2] : dialog to evaluate ipga. 5. [write] : dialog to write data by mouse operation. note : it is necessary to mclk=256fs and i 2 s for audio data format in the beginning. because ak4353 is fixed to mclk=256fs and i 2 s for audio data format.
asahi kasei [AKD5354] 00/06 - 6 - n explanation of each dialog 1. [function1 dialog] : dialog to write data by keyboard operation address box: input register address in 2 figures of hexadecimal. data box: input register data in 2 figures of hexadecimal. if you want to write the input data to ak5354, click ok button. if not, click cancel button. 2. [function2 dialog] : dialog to evaluate ipga this dialog corresponds to only addr=03h. address box: input register address in 2 figures of hexadecimal. start data box: input start data in 2 figures of hexadecimal. end data box: input end data in 2 figures of hexadecimal. interval box: data is written to ak5354 by this interval. step box: data changes by this step. mode select box: if you check this check box, data reaches end data, and returns to start data. [example] start data = 00, end data = 09 data flow: 00 01 02 03 04 05 06 07 08 09 09 08 07 06 05 04 03 02 01 00 if you do not check this check box, data reaches end data, but does not return to start data. [example] start data = 00, end data = 09 data flow: 00 01 02 03 04 05 06 07 08 09 if you want to write the input data to ak5354, click ok button. if not, click cancel button. 3. [write dialog] : dialog to write data by mouse operation there are dialogs corresponding to each register. click the write button corresponding to each register to set up the dialog. if you check the check box, data becomes h or 1. if not, l or 0. if you want to write the input data to ak5354, click ok button. if not, click cancel button. n operation flow keep the following flow surely. 1. set up the control program according to explanation above. 2. click port setup button. 3. click write default button. 4. then set up the dialog and input data.
asahi kasei [AKD5354] 00/06 - 7 - n indication of data input data is indicated on the register map. red letter indicates h or 1 and blue one indicates l or 0. blank is the part that is not defined in the datasheet. n attention on the operation if you set up function1 or function2 dialog, input data to all boxes. attention dialog is indicated if you input data or address that is not specified in the datasheet or you click ok button before you input data. in that case set up the dialog and input data once more again. these operations does not need if you click cancel button or check the check box.
asahi kasei [AKD5354] 00/06 - 8 - measurement results [measurement condition 1] measurement unit : audio precision, system two mclk : 256fs bclk : 64fs fs : 44.1khz bit : 20bit power supply : va = vd = 2.5v interface : dit temperature : room parameter input pin result (lch / rch) unit adc analog input characteristics s/(n+d) (-0.5db input) lin1 / rin1 lin2 / rin2 85.3 / 85.5 85.3 / 85.6 db db d-range (a-weighted) lin1 / rin1 lin2 / rin2 89.0 / 89.0 89.0 / 89.0 db db s/n (a-weighted) lin1 / rin1 lin2 / rin2 89.0 / 89.0 89.0 / 89.0 db db interchannel isolation lin1 / rin1 lin2 / rin2 110.6 / 109.6 111.1 / 111.8 db db
asahi kasei [AKD5354] 00/06 - 9 - [plot] akm ak5354 t hd+n vs. input level va=vd=2 .5v, fs=44.1khz, fin=1khz -100 -70 -97 -94 -91 -88 -85 -82 -79 -76 -73 d b f s -120 -10 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 dbr figure 1. thd+n vs. input level akm ak5354 t hd+n vs. input frequency va=vd=2 .5v, fs=44.1khz, input=-0.5dbr -100 -70 -97 -94 -91 -88 -85 -82 -79 -76 -73 d b f s 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 2. thd+n vs. input frequency
asahi kasei [AKD5354] 00/06 - 10 - akm ak5354 lin earity va=vd=2 .5v, fs=44.1khz, fin=1khz -120 +0 -100 -80 -60 -40 -20 d b f s -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbr figure 3. linearity akm ak5354 f requency response va=vd=2 .5v, fs=44.1khz, input=-0.5dbr -2 +0 -1.8 -1.6 -1.4 -1.2 -1 -0.8 -0.6 -0.4 -0.2 d b f s 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 4. frequency response
asahi kasei [AKD5354] 00/06 - 11 - akm ak5354 c rosstalk va=vd=2 .5v, fs=44.1khz, input=-0.5dbr -130 -90 -125 -120 -115 -110 -105 -100 -95 d b 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 5. crosstalk akm ak5354 fft plot va=vd=2 .5v, fs=44.1khz, input=-0.5dbr, fin=1khz -160 +0 -140 -120 -100 -80 -60 -40 -20 d b f s 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 6. fft plot
asahi kasei [AKD5354] 00/06 - 12 - akm ak5354 fft plot va=vd=2 .5v, fs=44.1khz, input=-60dbr, fin=1khz -160 +0 -140 -120 -100 -80 -60 -40 -20 d b f s 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 7. fft plot akm ak5354 fft plot va=vd=2 .5v, fs=44.1khz, fin=none -160 +0 -140 -120 -100 -80 -60 -40 -20 d b f s 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 8. fft plot
a a b b c c d d e e e e d d c c b b a a agnd dgnd h l lin1 lin2 rin1 rin2 va vd ak5354 a AKD5354 a3 12 monday, may 29, 2000 title size document number rev date: sheet of lin2 rin2 pdn csn sdto bclk mclk lrck cdti pdn rin1 lin1 cclk rin1 rin2 lin2 lin1 va d2v vcc c5 0.1u + c4 2.2u + c8 47u l1 (short) 1 2 jp4 gnd r11 51 r9 51 r8 51 r7 51 r5 51 r6 51 c12 0.1u + c11 47u l2 10u 1 2 sw1 pdn 2 1 3 d1 1s1588 2 1 r2 10k c2 0.1u u2 74lv c541 2 3 4 5 6 7 8 9 1 19 18 17 16 15 14 13 12 11 20 10 a1 a2 a3 a4 a5 a6 a7 a8 g1 g2 y1 y2 y3 y4 y5 y6 y7 y8 vcc gnd cn1 1 2 3 4 5 6 7 8 cn2 9 10 11 12 13 14 15 16 c7 0.1u + c6 10u l3 10u 1 2 + c9 10u c10 0.1u j1 lin r1 560 + c1 10u j2 rin r3 560 + c3 10u jp1 lin jp2 rin r10 10 ak5354 u3 1 2 3 4 5 6 7 8 10 11 12 13 15 14 16 9 lin1 rin1 lin2 rin2 vcom vss va vd bclk mclk lrck cdti csn cclk pdn sdto u1a 74hc14 1 2 u1b 74hc14 3 4 r4 51 jp3 vd
a a b b c c d d e e e e d d c c b b a a mclk bclk lrck sdto rom for 74hcu04, 74hc14, 74hc4040 lh csn cclk cdti for sn74l vc07a ext xtl interface a AKD5354 a3 22 saturday, may 13, 2000 title size document number rev date: sheet of sdto csn cclk cdti csn cclk cdti bclk lrck mclk vcc vcc vcc vcc vcc vcc vcc d2v r12 1k r13 10k c23 0.1u c24 0.1u c25 0.1u + c22 47u r22 10k c13 0.1u c16 0.1u d2 1s1588 2 1 sw2 dit 2 1 3 port1 dit 1 2 3 4 5 6 gnd if vcc in 5 6 u4 ak4353 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 mcko tx dvdd dvss mcki bick sdti lrck pdn csn scl/cclk sda/cdti tst ttl i2c cad1 cad0 aoutr aoutl vcom avss avdd nc dzf c17 0.1u c19 0.1u + c18 10u + c20 10u r14 5.1 c15 0.1u + c14 10u port3 rom 1 2 3 4 5 6 7 8 9 10 port2 ctrl 1 2 3 4 5 6 7 8 9 10 r19 470 r20 470 r15 10k r16 10k r17 10k l4 10u 1 2 r21 1k c21 0.1u r23 1m j3 ext u6c 74hcu04 5 6 c27 (open) c26 (open) u6b 74hcu04 3 4 u6a 74hcu04 1 2 jp5 xte jp7 ext x1 11.289 6mhz u7 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 jp6 clk r18 470 u1c 74hc14 5 6 u1d 74hc14 9 8 u5a sn74lvc07a 1 2
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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