asahi kasei [AKD4387-SB] 1 2006/07 general description the AKD4387-SB is an evaluation board for ak4387, which is 192khz sampling 24bit ' 6 dac. the AKD4387-SB includes a lpf which can add differential analog outputs from the ak4387 and also has a digital interface. therefore, it is easy to evaluate the ak4387. ordering guide AKD4387-SB --- evaluation board for ak4387 function on-board analog output buffer circuit on-board digital audio interface. (ak4113) ak4387 ak4113 coax in rch lch dir opt in 2nd order lpf gnd -15v +3.3v +15v reg reg +5v port2 ext port1 control data +5v figure 1. AKD4387-SB block diagram * circuit diagram are attached at the end of this manual. coax is recommended for an evaluation of the sound quality. ak4387 evaluation board rev.0 a kd4387-sb
asahi kasei [AKD4387-SB] 2 2006/07 ? operation sequence 1) set up the power supply lines. (see other jumpers set-up.) name color voltage comments attention +15v green +12 a +15v for regulator and op-amps. this jack should be always connected to power supply. -15v blue -12 a -15v for op-amps. this jack should be always connected to power supply. 5v red +4.75 a +5.25v for ak4387. this jack should be always connected to power supply. agnd black 0v gnd this jack should be always connected to power supply. table 1. set up of power supply lines each supply line should be distributed from the power supply unit. 2) set-up the jumper pins 3) set-up the dip switches. (see the followings.) 4) power on the ak4387 should be reset once by bringing sw4 (pdn) l upon power-up.
asahi kasei [AKD4387-SB] 3 2006/07 ? evaluation mode 1. dir (coax) (default) it is possible to evaluate the ak4387 by using cd disk. the dir generates mclk, bick, lrck and sdata from the received data through rca connector (j3). setting of jumper is shown below. coax is recommended for an evaluation of the sound quality. jp1 opt coax rx (default) figure 2. jumper setting, when using dir 2. dir (optical link) it is possible to evaluate the ak4387 by using cd disk. the dir generates mclk, bick, lrck and sdata from the received data through optical connector (port3: torx173). setting of jumper is shown below. jp1 opt coax rx figure 3. jumper setting, when using dir 3. all clocks are fed through the port2. r1, r2, r3, r4 : open r26, r27, r28, r30 : 100 : ? or short (0 : ) ?
asahi kasei [AKD4387-SB] 4 2006/07 ? dip switch setting [sw1]: ak4387 setting no. pin sw1 off sw1 on default 1 smute - - off 2 p/s serial control mode parallel control mode off 3 acks - - off 4 dif0 - - off table 2. sw1 setting [sw2]: ak4387 setting no. pin default 1 - nc off 2 - nc off 3 dem nc off 4 dif1 nc off table 3. sw2 setting [sw3]: ak4113 setting no. pin off on default 1 ocks1 on 2 ocks0 ak4113 master clock setting refer to table4 off table 4. sw3 setting the frequency of the master clock output is set by ocks0 and ocks1 as shown in table 4 . ocks1 ocks0 mclk frequency 0 0 256fs @fs=88.2/96khz 1 0 512fs @32/44.1/48khz 1 1 128fs @176.4/192khz default table 5. mclk clock the digital de-emphasis filter is set by dem pin as follows. dem sw dem pin state de-emphasis filter off 1 on default on 0 off table 6. de-emphasis filter control data is shifted in via the sdti pin using bick and lrck inputs. the dif0-1 as shown in table 7 can select four serial data modes. mode dif1 sw dif0 sw dif1 pin state dif0 pin state sdti format bick 0 on on 0 0 16bit lsb justified t 32fs 1 on off 0 1 24bit lsb justified t 48fs 2 off on 1 0 24bit msb justified t 48fs default 3 off off 1 1 16/24bit i 2 s compatible t 48fs or 32fs table 7. audio data formats
asahi kasei [AKD4387-SB] 5 2006/07 ? toggle switch setting [sw4](pdn): reset of ak4387. select h during operation .
asahi kasei [AKD4387-SB] 6 2006/07 external analog circuit the 2nd order lpf (fc=125.6khz, q=0.753) which adds differential outputs of the ak4387 is implemented on the board. when the fu rther attenuation of the out-band noise is needed, some additional lpf is required. analog signal is output through bnc connectors on the board. and the output level of the ak4387 is 5.67vpp@5v. c1 r4 r1 r2 c2 +vop r3 -vop aout 22u fc=125.6khz, q=0.753, g=0.060db at 40khz analog out 22k r0 figure 4. external analog filter r 0 r 1 r 2 r 3 r 4 c 1 c 2 910 1.8k 3.9k 3.3k 3.9k 390p 390p table 8. the value of r,c on this board fin 20khz 40khz 80khz frequency response 0.023db 0.060db -0.288db table 9. frequency response of lpf fc= z 0 2 s , z 0 = 1 c 1 c 2 r 1 r 2 , amplitude = 20 log [1-(f/fc) 2 ] 2 +[(1/q)(f/fc)] 2 k [db], k= r 3 +r 4 r 4 , 2 2 2 1 1 1 1 1 1 1 2 r c k r c r c fc q s
asahi kasei [AKD4387-SB] 7 2006/07 measurement results [measurement condition] x measurement unit : audio precision system two cascade (ap2) x mclk : 512fs (44.1khz), 256fs (96khz), 128fs (192khz) x bick : 64fs x fs : 44.1khz, 96khz, 192khz x bit : 24bit x power supply : vdd=5v x interface : internal dir (44.1khz, 96khz, 192khz) x temperature : room fs=44.1khz parameter input signal filter condition lch rch 1khz, 0db 20klpf 89.9db 90.3db s/(n+d) 1khz, -60db 20klpf 105.6db 105.6db dr 1khz, -60db 20kspcl, a-weighted 105.8db 105.8db 0 data 20klpf 104.3db 104.8db s/n 0 data 20kspcl, a-weighted 106.8db 107.5db fs=96khz parameter input signal filter condition lch rch 1khz, 0db 40klpf 89.7db 89.7db s/(n+d) 1khz, -60db 40klpf 106.5db 106.5db dr 1khz, -60db 20kspcl, a-weighted 106.8db 106.8db 0 data 40klpf 104.5db 104.5db s/n 0 data 20kspcl, a-weighted 107.7db 107.7db fs=192khz parameter input signal measurement filter lch rch 1khz, 0db 40klpf 85.3db 85.3db s/(n+d) 1khz, -60db 40klpf 100.4db 100.4db dr 1khz, -60db 20kspcl, a-weighted 103.8db 103.5db 0 data 40klpf 103.7db 103.7db s/n 0 data 20kspcl, a-weighted 107.0db 107.0db
asahi kasei [AKD4387-SB] 8 2006/07 plots (fs=44.1khz) akm ak4387 fft avdd=dvdd=5v, fs=44.1khz, mclk=512fs, 0dbfs input, 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 figure 5. fft (fin=1khz, 0dbfs input) akm ak4387 fft avdd=dvdd=5v, fs=44.1khz, mclk=512fs, -60dbfs input, 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 figure 6. fft (fin=1khz, -60dbfs input) (fs=44.1khz)
asahi kasei [AKD4387-SB] 9 2006/07 akm ak4387 fft avdd=dvdd=5v, fs=44.1khz, mclk=512fs, fin=no signal -160 -10 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 d b r a 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 7. fft (noise floor) akm ak4387 fft out-of-band niose vdd=5v, fs=44.1khz, mclk=512fs, fin=no signal -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 figure 8. fft (out of band noise)
asahi kasei [AKD4387-SB] 10 2006/07 (fs=44.1khz) akm ak4387 thd+n vs. input level avdd=dvdd=5v, fs=44.1khz, mclk=512fs, fin=1khz -120 -70 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b r a -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs figure 9 . thd+n vs. input level (fin=1khz) akm ak4387 thd+n vs. input frequency avdd=dvdd=5v, fs=44.1khz, mclk=512fs, 0dbfs input -120 -70 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b r a 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 10 . thd+n vs. input frequency (0dbfs input)
asahi kasei [AKD4387-SB] 11 2006/07 (fs=44.1khz) akm ak4387 linearity avdd=dvdd=5v, fs=44.1khz, mclk=512fs, fin=1khz -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs figure 11. linearity (fin=1khz) akm ak4387 frequency response avdd=dvdd=5v, fs=44.1khz, 0dbfs input -1 +1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 +0 +0.1 +0.2 +0.3 +0.4 +0.5 +0.6 +0.7 +0.8 +0.9 d b r a 2k 20k 4k 6k 8k 10k 12k 14k 16k 18k hz figure 12. frequency response (0dbfs input)
asahi kasei [AKD4387-SB] 12 2006/07 (fs=44.1khz) akm ak4387 crosstalk (red=lch, blue=rch) avdd=dvdd=5v, fs=44.1khz, 0dbfs input -130 -70 -125 -120 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 13. crosstalk (0dbfs input)
asahi kasei [AKD4387-SB] 13 2006/07 (fs=96khz) akm ak4387 fft avdd=dvdd=5v, fs=96khz, 0dbfs input, fin=1khz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz figure 14. fft (fin=1khz, 0dbfs input) akm ak4387 fft avdd=dvdd=5v, fs=96khz, 0dbfs input, fin=1khz, notch=on -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz figure 15. fft(fin=1khz, 0dbfs input, notch)
asahi kasei [AKD4387-SB] 14 2006/07 (fs=96khz) akm ak4387 fft avdd=dvdd=5v, fs=96khz, -60dbfs input, fin=1khz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz figure 16. fft (fin=1khz, -60dbfs input) akm ak4387 fft avdd=dvdd=5v, fs=96khz, fin=no signal -160 -10 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 d b r a 20 20k 50 100 200 500 1k 2k 5k 10k hz figure 17. fft (noise floor)
asahi kasei [AKD4387-SB] 15 2006/07 (fs=96khz) akm ak4387 thd+n vs. input level avdd=dvdd=5v, fs=96khz, fin=1khz -120 -70 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b r a -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs figure 18. thd+n vs. input level (fin=1khz) akm ak4387 thd+n vs. input frequency avdd=dvdd=5v, fs=96khz, 0dbfs input -120 -70 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b r a 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz figure 19. thd+n vs. input frequency (0dbfs input)
asahi kasei [AKD4387-SB] 16 2006/07 (fs=96khz) akm ak4387 linearity avdd=dvdd=5v, fs=96khz, fin=1khz -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs figure 20. linearity (fin=1khz) akm ak4387 frequency response avdd=dvdd=5v, fs=96khz, 0dbfs input -1 +1 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 +0 +0.1 +0.2 +0.3 +0.4 +0.5 +0.6 +0.7 +0.8 +0.9 d b r a 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 figure 21. frequency response (0dbfs input)
asahi kasei [AKD4387-SB] 17 2006/07 (fs=96khz) akm ak4387 crosstalk (red=lch, blue=rch) avdd=dvdd=5v, fs=96khz, 0dbfs input -130 -70 -125 -120 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b 40 40k 50 100 200 500 1k 2k 5k 10k 20k hz figure 22. crosstalk (0dbfs input)
asahi kasei [AKD4387-SB] 18 2006/07 (fs=192khz) akm ak4387 fft avdd=dvdd=5v, fs=192khz, 0dbfs input, fin=1khz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 90 80k 200 500 1k 2k 5k 10k 20k 50k hz figure 23. fft (fin=1khz, 0dbfs input) akm ak4387 fft avdd=dvdd=5v, fs=192khz, 0dbfs input, fin=1khz, notch=on -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 90 80k 200 500 1k 2k 5k 10k 20k 50k hz figure 24. fft(fin=1khz, 0dbfs input, notch)
asahi kasei [AKD4387-SB] 19 2006/07 (fs=192khz) akm ak4387 fft avdd=dvdd=5v, fs=192khz, -60dbfs input, fin=1khz -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 90 80k 200 500 1k 2k 5k 10k 20k 50k hz figure 25. fft (fin=1khz, -60dbfs input) akm ak4387 fft avdd=dvdd=5v, fs=192khz, fin=no signal -160 +0 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a 90 80k 200 500 1k 2k 5k 10k 20k 50k hz figure 26. fft (noise floor)
asahi kasei [AKD4387-SB] 20 2006/07 (fs=192khz) akm ak4387 thd+n vs. input level avdd=dvdd=5v, fs=192khz, fin=1khz -120 -70 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b r a -120 +0 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs figure 27. thd+n vs. input level (fin=1khz) akm ak4387 thd+n vs. input frequency avdd=dvdd=5v, fs=192khz, 0dbfs input -120 -70 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b r a 90 80k 200 500 1k 2k 5k 10k 20k 50k hz figure 28. thd+n vs. input frequency (0dbfs input)
asahi kasei [AKD4387-SB] 21 2006/07 (fs=192khz) akm ak4387 linearity avdd=dvdd=5v, fs=192khz, fin=1khz -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 d b r a -130 +0 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 dbfs figure 29. linearity (fin=1khz) akm ak4387 frequency response avdd=dvdd=5v, fs=192khz, 0dbfs input -3 +1 -2.8 -2.6 -2.4 -2.2 -2 -1.8 -1.6 -1.4 -1.2 -1 -0.8 -0.6 -0.4 -0.2 -0 +0.2 +0.4 +0.6 +0.8 d b r a 5k 80k 10k 15k 20k 25k 30k 35k 40k 45k 50k 55k 60k 65k 70k 75k hz figure 30. frequency response (0dbfs input)
asahi kasei [AKD4387-SB] 22 2006/07 (fs=192khz) akm ak4387 crosstalk (red=lch, blue=rch) avdd=dvdd=5v, fs=192khz, 0dbfs input -130 -70 -125 -120 -115 -110 -105 -100 -95 -90 -85 -80 -75 d b 90 80k 200 500 1k 2k 5k 10k 20k 50k hz figure 31. crosstalk (0dbfs input)
asahi kasei [AKD4387-SB] 23 2006/07 revision history important notice x 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. x akm assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein. x 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. x 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. x 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. date (yy/mm/dd) manual revision board revision reason contents 06/07/28 km084600 0 first edition
1 1 a a +15v -15v +5v smute p/s acks d3v rstn avdd 4113_lrck 4113_mclk 4113_bick aoutl aoutr 4113_sdto smute acks p/s dif0 dif0 avdd avdd vop+ vop- d3v title size document number rev date: sheet of ak4387 0 AKD4387-SB a3 13 tuesday, july 04, 2006 title size document number rev date: sheet of ak4387 0 AKD4387-SB a3 13 tuesday, july 04, 2006 title size document number rev date: sheet of ak4387 0 AKD4387-SB a3 13 tuesday, july 04, 2006 csn cdti cclk bick mclk lrck sdti1 acks p/s smute rstn dem dif1 dif0 mclk lrck sdata bick r5,r8,r9,r10,c9 setting for ak4384/4387/4388 ak4388 ak4387 ak4384 # 9 # 15 dif1 dem nc dvdd p/s dzfr r5 c9 r10 r8 nc nc 0-ohm nc r9 0-ohm 0-ohm 0.1u nc nc nc nc nc nc 0-ohm nc + c2 470u + c2 470u r8 nc r8 nc + c8 10u + c8 10u r3 100 r3 100 r1 5.1 r1 5.1 r14 470 r14 470 10 8 6 4 2 1 3 5 7 9 port1 up-i/f port1 up-i/f r7 nc r7 nc r15 470 r15 470 c36 0.1u c36 0.1u r26 nc r26 nc r28 nc r28 nc r57 nc r57 nc c9 0.1u c9 0.1u r2 100 r2 100 r4 100 r4 100 1 2 3 4 5 6 7 8 9 10 port2 ext port2 ext r25 5.1 r25 5.1 mclk 1 bick 2 sdti 3 lrck 4 rstn 5 csn 6 cclk 7 cdti 8 dzf 16 dvdd 15 avdd 14 vss 13 vcom 12 aoutl 11 aoutr 10 nc 9 u6 ak4387 u6 ak4387 c5 nc c5 nc r5 0 r5 0 1a 2 1y 4 1b 3 2a 5 2y 7 2b 6 3a 11 3y 9 3b 10 4a 14 4y 12 4b 13 a/b 1 g 15 vcc 16 gnd 8 u4 74lvc157 u4 74lvc157 r30 nc r30 nc + c7 10u + c7 10u out 3 gnd 2 in 1 t1 njm78m05fa t1 njm78m05fa r10 nc r10 nc r12 10k r12 10k r21 10k r21 10k 1 2 3 4 8 7 6 5 sw1 sw dip-4 sw1 sw dip-4 r29 10k r29 10k 1 2 3 4 8 7 6 5 sw2 sw dip-4 sw2 sw dip-4 r24 10k r24 10k r19 10k r19 10k r23 10k r23 10k r11 10k r11 10k c20 nc c20 nc r18 10k r18 10k c4 10p c4 10p r20 10k r20 10k r17 10k r17 10k r27 nc r27 nc r22 10k r22 10k r62 nc r62 nc + c1 470u + c1 470u r16 470 r16 470 r6 0 r6 0 r61 0 r61 0 c6 0.1u c6 0.1u r9 nc r9 nc r13 10k r13 10k
1 1 a a vop- vop+ aoutl aoutr title size document number rev date: sheet of analog 0 AKD4387-SB a3 23 monday, july 03, 2006 title size document number rev date: sheet of analog 0 AKD4387-SB a3 23 monday, july 03, 2006 title size document number rev date: sheet of analog 0 AKD4387-SB a3 23 monday, july 03, 2006 r32 910 r32 910 r33 22k r33 22k c19 390p c19 390p r41 3.3k r41 3.3k r59 nc r59 nc + c26 10u + c26 10u r31 910 r31 910 + c31 10u + c31 10u c30 0.1u c30 0.1u + c10 22u + c10 22u c22 100p c22 100p + c27 10u + c27 10u r43 20k r43 20k r48 0 r48 0 + c29 10u + c29 10u 3 2 1 8 4 + - u3a njm4580 + - u3a njm4580 r45 220 r45 220 r47 0 r47 0 r44 20k r44 20k c18 390p c18 390p r36 1.8k r36 1.8k 2 3 1 j2 mr-552ls j2 mr-552ls c24 nc c24 nc r46 220 r46 220 c14 390p c14 390p c12 100p c12 100p 5 6 7 8 4 + - u3b njm4580 + - u3b njm4580 c13 100p c13 100p r37 3.9k r37 3.9k c46 nc c46 nc r35 1.8k r35 1.8k r39 3.9k r39 3.9k r58 nc r58 nc r42 3.3k r42 3.3k 2 3 1 j1 mr-552ls j1 mr-552ls c17 nc c17 nc c16 nc c16 nc r40 3.9k r40 3.9k c45 nc c45 nc r34 22k r34 22k + c11 22u + c11 22u c25 nc c25 nc c15 390p c15 390p c28 0.1u c28 0.1u r38 3.9k r38 3.9k c23 100p c23 100p
1 1 a a rstn 4113_mclk 4113_bick 4113_lrck 4113_sdto vop+ d3v avdd title size document number rev date: sheet of dir 0 AKD4387-SB a3 33 monday, july 03, 2006 title size document number rev date: sheet of dir 0 AKD4387-SB a3 33 monday, july 03, 2006 title size document number rev date: sheet of dir 0 AKD4387-SB a3 33 monday, july 03, 2006 h l ocks1 ocks1 ocks0 ocks0 l hh l l s3 h 512fs@fs=32k/44.1k/48khz 256fs@fs=88.2k/96khz coax 128fs@fs=176.4k/192khz opt master clock coax 13 2 c39 0.1u c39 0.1u 2 1 3 sw4 rstn sw4 rstn c47 nc c47 nc c33 0.1u c33 0.1u c35 0.1u c35 0.1u 1 2 l1 0 l1 0 out gnd in t2 upc3533hf t2 upc3533hf 2 3 1 j3 mr-552ls j3 mr-552ls c40 0.1u c40 0.1u c37 0.1u c37 0.1u r49 10k r49 10k jp1 rx jp1 rx c43 0.1u c43 0.1u r60 nc r60 nc out 1 vcc 3 gnd 4 gnd 2 6 6 5 5 port3 torx173 port3 torx173 r55 10k r55 10k + c41 10u + c41 10u r54 10k r54 10k dvdd 1 dvss 2 tvdd 3 v/tx 4 xti 5 xto 6 pdn 7 r 8 avdd 9 avss 10 rx1 11 rx2/dif0 12 rx3/dif1 13 rx4/dif2 14 int1 17 p/sn 18 fs96/i2c 19 int0 20 lrck 21 sdto 22 bick 23 daux 24 mcko2 25 mcko1 26 ocks0/csn/cad0 27 ocks1/cclk/scl 28 cm1/cdti/sda 29 cm0/cdto/cad1 30 rx5 15 rx6/ips 16 u2 ak4113 u2 ak4113 r51 15k r51 15k r56 0 r56 0 r52 75 r52 75 r53 100 r53 100 c44 0.1u c44 0.1u int0 int0 2 1 d1 hsu119 d1 hsu119 r50 5.1 r50 5.1 + c38 10u + c38 10u c34 0.1u c34 0.1u 1 2 4 3 sw3 ocks sw3 ocks + c32 47u + c32 47u c42 0.1u c42 0.1u vcc 14 gnd 7 1a 1 2a 3 3a 5 4a 9 5a 11 6a 13 6y 12 5y 10 4y 8 3y 6 2y 4 1y 2 74hc14 u5 74hc14 u5
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