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ASAHI KASEI
[AKD4382]
AKD4382
Evaluation board Rev.A for AK4382
GENERAL DESCRIPTION The AKD4382 is an evaluation board for the AK4382, the 24bit, 192kHz D/A converter for DVD and AC3 amp. The AKD4382 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 AK4382. The AKD4382 also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector or BNC connector. n Ordering guide
AKD4382 --Evaluation board for AK4382 (Cable for connecting with printer port of IBM-AT compatible PC and control software are packed with this.)
FUNCTION * On-board 2nd order LPF * Compatible with 2 types of interface - Direct interface with AKM's A/D converter evaluation boards and direct interface with AKM's signal generator(AKD43XX) by 10pin header - On-board AK4112A as DIR which accepts optical or BNC input * 10pin header for serial control interface
-15V +15V
Regulator
GND
5V Lch AK4112A (DIR) Opt In COAX In
10pin Header
Output LPF Rch
AK4382
A/D Data ROM Data
10pin Header
Control Data
Figure 1. AKD4382 Block Diagram * Circuit diagram and PCB layout are attached at the end of this manual.
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ASAHI KASEI
[AKD4382]
n External analog circuit
The 2nd order LPF (fc=93.2kHz, Q=0.712) which adds differential outputs of the AK4382 is implemented on the board. When the further 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 AK4382 is 5.5Vpp@5V.
LOUT(ROUT-)
R2 R1 R3 C1 R1 R3 C2
+15V
+
22u
220
LOUT+ (ROUT+)
NJM5532D
R2 C2
10k
-15V
Figure 2. On-board analog filter R1 4.7k R2 R3 C1 4.7k 200 3300p Table 1. The value of R,C on this board C2 470p
fin 20kHz 40kHz Frequency Response -0.003dB -0.122dB Table 2. Frequency Response of LPF Amplitude = 20 log K= fc= 0= Q= R2 , R1 0 , 2 1 , 2C1C2R2R3 2C10 . 1+1+1 R1 R2 R3 K [1-(f/fc) ] +[(1/Q)(f/fc)] 2
22
80kHz -1.821dB
[dB],
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ASAHI KASEI
[AKD4382]
n Operation sequence
1) Set up the power supply lines. [+15V] (orange) = +12 +15V [-15V] (blue) = -12 -15V [4382_VDD] (red) = 4.75 5.25V (Note 2) [AGND] (black) = 0V [DGND] (black) = 0V Note: 1. Each supply line should be distributed from the power supply unit. 2. JP3(REG) should be shorted and "4382_VDD" jack should be open if VDD of the AK4382 is supplied from the regulator.
2) Set-up the evaluation modes, jumper pins and DIP switches (See the followings.) 3) Power on. The AK4382 should be reset once bringing SW1(PDN) "L" upon power-up.
n Evaluation mode
Applicable evaluation modes 1) DIR (Optical Link or BNC) (default) 2) Using ROM data (AK43XX) 3) Using AKM's evaluation board for ADC 4) Feeding all signals from external 1) DIR (Optical Link or BNC) The AK4112A(DIR) generates MCLK, BICK, LRCK and SDATA from the received data through PORT1(TORX176: optical link) or J1(BNC). Used for the evaluation using CD test disk. Nothing should be connected to PORT2(EXT). In case of using optical connector (TORX176), JP1(TORX/BNC) should be selected to "TORX". In case of using BNC connector, select "BNC". JP4 MCLK JP5 BICK JP6 SDATA JP7 LRCK
2) Ideal sine wave generated by ROM data Connect the AKD43XX with PORT2(EXT). The AKD4382 sends MCLK to the AKD43XX which the AK4112A(DIR) generates from the received data through PORT1(TORX176: optical link) or J1(BNC). And the AKD4382 receives LRCK, BICK and SDATA from the AKD43XX. JP4 MCLK JP5 BICK JP6 SDATA JP7 LRCK
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ASAHI KASEI
[AKD4382]
3) Using AKM's evaluation board for ADC To evaluate the AK4382 with analog input, the AKM's evaluation board for ADC can be used. MCLK, BICK and LRCK and A/D converted data are sent to the AKD4382 through PORT2(EXT) via 10 pin flat cable. JP4 MCLK JP5 BICK JP6 SDATA JP7 LRCK
4) Feeding all signals from external Under the following set-up, all external signals can be fed through POTR2(EXT). JP4 MCLK JP5 BICK JP6 SDATA JP7 LRCK
n DIP switch(S1) set up
S1 sets the mode of the AK4112A. Set-up is needed only for the evaluation mode 1 and 2. ON is "H" and OFF is "L". No. 1 2 3 4 Pin CM0 CM1 OCKS1 OCKS0 Default Introduction Clock mode set-up OFF (Refer to the table 4.) OFF OFF MCLK frequency set-up (Refer to the table 5.) OFF Table 3. S1 set-up CM0 MCKO SDTO (S1-1) OFF TORX or BNC TORX or BNC ON X'tal "0" data Table 4. AK4112A clock mode set-up LRCK OCKS0 MCLK (S1-4) Normal Double OFF 256fs Yes Yes OFF 512fs Yes No Table 5. AK4112A MCLK frequency set-up
CM1 (S1-2) OFF OFF
OCKS1 (S1-3) OFF ON
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ASAHI KASEI
[AKD4382]
n Jumpers set up
[JP1](TORX/BNC): The source of the biphase signal input to the AK4112A TORX: PORT1(TORX176: optical link) BNC: J1(BNC) [JP2](GND): AGND and DGND Open: AGND and DGND are disconnected. Short: AGND and DGND are connected. ( "DGND" jack can be open.) [JP3](REG): VDD of the AK4382 Short: VDD is supplied from the regulator ( "4382_VDD" jack should be open). Open: VDD is supplied from "4382_VDD" jack. [JP4](MCLK): MCLK of the AK4382 Short: MCLK is fed from the AK4112A. Open : MCLK is fed from the external circuit via PORT2(EXT). [JP5](BICK): BICK of the AK4382 Short: BICK is fed from the AK4112A. Open : BICK is fed from the external circuit via PORT2(EXT). [JP6](SDATA): SDTI of the AK4382 Short: SDATA is fed from the AK4112A. Open : SDATA is fed from the external circuit via PORT2(EXT). [JP7](LRCK): LRCK of the AK4382 Short: LRCK is fed from the AK4112A. Open : LRCK is fed from the external circuit via PORT2(EXT).
n The function of the toggle SW
[SW1] (PDN): Resets the AK4382 and the AK4112A. Keep "H" during normal operation.
n The indication content for LED
[LE1] (ERF) [LE2] (FS96) [LE3] (AUTO) [LE4] (V) : Unlock and parity error output of the AK4112A. : 96kHz sampling detect of the AK4112A. : Non-PCM data (AC-3, MPEG etc.) detects of the AK4112A. : Validity detect of the AK4112A. PORT3 uP-I/F
n Serial control
The AKD4382 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT3(uP-I/F) with PC by 10-wire flat cable packed with the AKD4382. Take care of the direction of connector. There is a mark at 1pin. The pin layout of PORT3 is as Figure 4. 2 10
9 CSN CCLK CDTI
1
Figure 4. PORT3 pin layout
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ASAHI KASEI
[AKD4382]
MEASUREMENT RESULTS
[Measurement condition] * Measurement unit : Audio Precision System two Cascade * MCLK : 256fs * BICK : 64fs * fs : 44.1kHz, 96kHz * BW : 10Hz20kHz (fs=44.1kHz), 10Hz40kHz (fs=96kHz) * Bit : 24bit * Power Supply : VDD=5V * Interface : DIR * Temperature : Room fs=44.1kHz Parameter S/(N+D) DR S/N
Input signal 1kHz, 0dB 1kHz, -60dB no signal
Measurement filter 20kLPF 20kLPF 22kLPF, A-weighted 20kLPF 22kLPF, A-weighted
Lch 95.0dB 108.0dB 111.0dB 107.1dB 110.4dB
Rch 95.0dB 108.0dB 111.0dB 107.1dB 110.4dB
fs=96kHz Parameter S/(N+D) DR S/N
Input signal 1kHz, 0dB 1kHz, -60dB no signal
Measurement filter 40kLPF 40kLPF 22kLPF, A-weighted 40kLPF 22kLPF, A-weighted
Lch 93.0dB 105.6dB 111.8dB 105.9dB 112.2dB
Rch 93.0dB 105.6dB 111.7dB 105.9dB 112.0dB
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ASAHI KASEI
[AKD4382]
n Plots
[Measurement condition] * Measurement unit : Audio Precision System two Cascade * MCLK : 256fs * BICK : 64fs * fs : 44.1kHz, 96kHz * BW : 10Hz20kHz (fs=44.1kHz), 10Hz40kHz (fs=96kHz) * Bit : 24bit * Power Supply : VDD=5V * Interface : DIR * Temperature : Room
fs=44.1kHz Figure 6 . FFT (1kHz, 0dBFS input) Figure 7 . FFT (1kHz, -60dBFS input) Figure 8 . FFT (noise floor) Figure 9 . FFT (out-of-band noise) Figure 10. THD+N vs Input Level (fin=1kHz) Figure 11. THD+N vs fin (Input level=0dBFS) Figure 12. Linearity (fin=1kHz) Figure 13. Frequency Response (Input level=0dBFS) Figure 14. Cross-talk (Input level=0dBFS) fs=96kHz Figure 15. FFT (1kHz, 0dBFS input, Notch=OFF) Figure 16. FFT (1kHz, 0dBFS input, Notch=ON) Figure 17. FFT (1kHz, -60dBFS input) Figure 18. FFT (noise floor) Figure 19. FFT (outband noise) Figure 20. THD+N vs Input Level (fin=1kHz) Figure 21. THD+N vs fin (Input level=0dBFS) Figure 22. Linearity (fin=1kHz) Figure 23. Frequency Response (Input level=0dBFS) Figure 24. Cross-talk (Input level=0dBFS) FFT point=16384, Avg=8, Window=Equirriple
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ASAHI KASEI
[AKD4382]
(fs=44.1kHz)
AKM AK4382 FFT (fs=44.1kHz; Input=1kHz, 0dBFS) FFT points=16384, Avg=8, Window=Equirriple
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 6 . FFT (1kHz, 0dBFS input)
AKM AK4382 FFT (fs=44.1kHz; Input=1kHz, -60dBFS) FFT points=16384, Avg=8, Window=Equirriple
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 7 . FFT (1kHz, -60dBFS input)
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ASAHI KASEI
[AKD4382]
(fs=44.1kHz)
AKM AK4382 FFT (fs=44.1kHz; Noise floor) FFT points=16384, Avg=8, Window=Equirriple
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 8 . FFT (noise floor)
AKM AK4382 FFT (fs=44.1kHz; Out-of-band noise ~130kHz) FFT points=16384, Avg=8, Window=Equirriple
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 100
200
500
1k
2k Hz
5k
10k
20k
50k
100k
Figure 9 . FFT (out-of-band noise)
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ASAHI KASEI
[AKD4382]
(fs=44.1kHz)
AKM
-90 -91 -92 -93 -94 -95 -96 -97 -98 d B r A -99 -100 -101 -102 -103 -104 -105 -106 -107 -108 -109 -110 -140 -130 -120 -110 -100 -90 -80 -70 dBFS -60 -50 -40 -30 -20 -10 +0
AK4382 THD+N vs Input level (fs=44.1kHz; fin=1kHz)
Figure 10. THD+N vs Input Level (fin=1kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B r A -98 -100 -102 -104 -106 -108 -110 20 -94 -96
AK4382 THD+N vs fin (fs=44.1kHz; Input level=0dBFS)
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 11. THD+N vs fin (Input level=0dBFS)
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ASAHI KASEI
[AKD4382]
(fs=44.1kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
AK4382 Linearity (fs=44.1kHz; fin=1kHz)
d B r A
-130
-120
-110
-100
-90
-80
-70 dBFS
-60
-50
-40
-30
-20
-10
+0
Figure 12. Linearity (fin=1kHz)
AKM
+0.5 +0.45 +0.4 +0.35 +0.3 +0.25 +0.2 +0.15 +0.1 d B r A +0.05 +0 -0.05 -0.1 -0.15 -0.2 -0.25 -0.3 -0.35 -0.4 -0.45 -0.5 2k 4k 6k 8k 10k Hz 12k 14k 16k 18k 20k
AK4382 Frequency Response (fs=44.1kHz; Input level=0dBFS)
Figure 13. Frequency Response (Input level=0dBFS)
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ASAHI KASEI
[AKD4382]
(fs=44.1kHz)
AKM AK4382 Cross-talk (fs=44.1kHz; Input level=0dBFS) upper: Rch --> Lch; lower: Lch --> Rch
-90
-95
-100
-105
-110
d B
-115
-120
-125
-130
-135
-140 20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Figure 12. Cross-talk (Input level=0dBFS)
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ASAHI KASEI
[AKD4382]
(fs=96kHz)
AKM AK4382 FFT (fs=96kHz; Input=1kHz, 0dBFS) FFT points=16384, Avg=8, Window=Equirriple, Notch=OFF
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 15. FFT (1kHz, 0dBFS input, Notch=OFF)
AKM AK4382 FFT (fs=96kHz; Input=1kHz, 0dBFS) FFT points=16384, Avg=8, Window=Equirriple, Notch=ON
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 16. FFT (1kHz, 0dBFS input, Notch=ON)
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ASAHI KASEI
[AKD4382]
(fs=96kHz)
AKM AK4382 FFT (fs=96kHz; Input=1kHz, -60dBFS) FFT points=16384, Avg=8, Window=Equirriple
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 17. FFT (1kHz, -60dBFS input)
AKM AK4382 FFT (fs=96kHz; Noise floor) FFT points=16384, Avg=8, Window=Equirriple
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 40
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 18. FFT (noise floor)
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'00/09
ASAHI KASEI
[AKD4382]
(fs=96kHz)
AKM AK4382 FFT (fs=96kHz; Out-of-band noise) FFT points=16384, Avg=8, Window=Equirriple
+0 -10 -20 -30 -40 -50 -60 d B r A -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 100
200
500
1k
2k Hz
5k
10k
20k
50k
100k
Figure 19. FFT (out-of-band noise)
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ASAHI KASEI
[AKD4382]
(fs=96kHz)
AKM
-90 -91 -92 -93 -94 -95 -96 -97 -98 d B r A -99 -100 -101 -102 -103 -104 -105 -106 -107 -108 -109 -110 -140 -130 -120 -110 -100 -90 -80 -70 dBFS -60 -50 -40 -30 -20 -10 +0
AK4382 THD+N vs Input level (fs=96kHz; fin=1kHz)
Figure 20. THD+N vs Input Level (fin=1kHz)
AKM
-80 -82 -84 -86 -88 -90 -92 d B r A -98 -100 -102 -104 -106 -108 -110 40 -94 -96
AK4382 THD+N vs fin (fs=96kHz; Input level=0dBFS)
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 21. THD+N vs fin (Input level=0dBFS)
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ASAHI KASEI
[AKD4382]
(fs=96kHz)
AKM
+0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -140
AK4382 Linearity (fs=96kHz; fin=1kHz)
d B r A
-130
-120
-110
-100
-90
-80
-70 dBFS
-60
-50
-40
-30
-20
-10
+0
Figure 22. Linearity (fin=1kHz)
AKM
+0.5 +0.45 +0.4 +0.35 +0.3 +0.25 +0.2 +0.15 +0.1 d B r A +0.05 +0 -0.05 -0.1 -0.15 -0.2 -0.25 -0.3 -0.35 -0.4 -0.45 -0.5 2.5k 5k 7.5k 10k 12.5k 15k 17.5k 20k Hz 22.5k 25k 27.5k 30k 32.5k 35k 37.5k 40k
AK4382 Frequency Response (fs=96kHz; Input level=0dBFS)
Figure 23. Frequency Response (Input level=0dBFS) (Including external LPF)
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ASAHI KASEI
[AKD4382]
(fs=96kHz)
AKM AK4382 Cross-talk (fs=96kHz; Input level=0dBFS) upper: Rch --> Lch; lower: Lch --> Rch
-90
-95
-100
-105
-110
d B
-115
-120
-125
-130
-135
-140 40
50
100
200
500
1k Hz
2k
5k
10k
20k
40k
Figure 24. Cross-talk (Input level=0dBFS)
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ASAHI KASEI
[AKD4382 Control Program]
AKD4382 Control Program ver 1.0 operation manual
n Set-up of evaluation board and control software
1. Set up the AKD4382 according to previous term. 2. Connect IBM-AT compatible PC with AKD4382 by 10-line type flat cable (packed with AKD4382). 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 "AKD4382 Control Program ver 1.0" into the floppy-disk drive. 4. Access the floppy-disk drive and double-click the icon of "AKD4382.exe" to set up the control program. 5. Then please evaluate according to the follows.
n Explanation of each buttons
1. [Port Setup] : 2. [Write default] : 3. [Function1] : 4. [Function2] : 5. [Write] : set up the printer port. initialize the register of AK4382. set up the dialog which can be written by keyboard operation. set up the dialog which can be written by keyboard operation. set up the dialog corresponding to each register which can be written by mouse operation.
n Explanation of each dialog
1. [Function1 Dialog] : Dialog to write data by keyboard operation Address Box: Data Box: Input register address in 2 figures of hexadecimal. Input register data in 2 figures of hexadecimal.
If you want to write the input data to AK4382, click "OK" button. If not, click "Cancel" button.
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ASAHI KASEI
[AKD4382 Control Program]
2. [Function2 Dialog] : Dialog to evaluate DATT This dialog corresponds to only addr=03H and 04H 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 AK4382 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 AK4382, 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 AK4382, 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.
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 operation does not need if you click "Cancel" button or check the check box.
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5
4
3
2
1
for 74HCT14 74HCT157 C17 0.1u C18 0.1u Reg_5V + C19 47u
JP2 GND Digital Ground Analog Ground
Reg_5V
1
L2 10u
2
D
T2 4382_VDD 1 EXT_MCLK EXT_BICK EXT_LRCK EXT_SDATA MCLK BICK LRCK SDATA 1 2 3 4 5 PORT2 10 9 8 7 6 EXT C20 47u R9 R10 R12 R13 R14 R27 R28 R29 MCLK BICK SDATA LRCK PDN CSN CCLK CDTI 100 100 100 100 100 100 100 100 + L3 (short) 2 JP3 REG + 3 C21 47u C22 0.1u 2 NJM78M05FA GND OUT IN 1 C23 0.1u +15V
D
EXT_MCLK EXT_BICK EXT_SDATA EXT_LRCK
R37 R38 R39 R40
100 100 100 100
2 3 5 6 11 10 14 13 1 15
U3 1A 1B 2A 2B 3A 3B 4A 4B
U1 1 2 3 4 5 6 7 8 MCLK BICK SDTI LRCK PDN CSN CCLK CDTI DZFL DZFR VDD VSS AOUTL+ AOUTLAOUTR+ AOUTR16 15 14 13 12 11 10 9
1Y 2Y 3Y 4Y
4 7 9 12
C24 0.1u + C25 10u AOUTL+ AOUTLAOUTR+ AOUTRAOUTL-
R11 4.7k
R15 4.7k
R16 200 VOP-
C26 470p
C
4112A_MCLK 4112A_BICK 4112A_SDTO 4112A_LRCK
JP4 JP5 JP6 JP7
MCLK BICK SDATA LRCK
A/B G 74HCT157
AK4382
C
4112A_PDN Reg_5V D2 R19 10k 13 H L C30 SW1 PDN 0.1u U2F 12 11 U2E 10 AOUTL+ R22 4.7k C29 470p R20 4.7k R21 200 VOP+
8
74HCT14
74HCT14
B
R26 4.7k Reg_5V R23 2.2k R24 2.2k R25 2.2k -15V 1 + PORT3 9 CSN 7 CCLK 5 CDTI 3 1 uP-I/F C32 47u L4 for NJM5532 2 + VOPAOUTRVOP4 C33 10u C34 0.1u 6 C35 3300p 5 R32 220 J3 AOUTR R30 4.7k R31 200 C31 470p
(short)
10 8 6 4 2
7 U5B NJM5532
+
+15V 1 C37 47u
A
for NJM5532 L5 2 + C38 10u C39 0.1u VOP+ AOUTR+
R34 4.7k
R35 200
VOP+
+
(short)
R36 4.7k
C40 470p
A
Title Size Document Number
8
A3
Date:
5 4 3 2
Tuesday, April 04, 2000
+
C27 3300p
3
+
1 U5A NJM5532
+
2
R17 220
J2 AOUTL
4
C28 22u
R18 10k
B
C36 22u
R33 10k
AKD4382
AK4382
Sheet
1
Rev
A
1
of
2
5
4
3
2
1
D
D
R1 5.1 4112A_3.3V C1 10u C3 10u Reg_5V + C2 0.1u C4 0.1u
U4 1 DVDD CM0 28 CM0
2
DVSS
CM1
27
CM1
C5 22p
X1 24.576MHz 2
C6 22p
C
1
4112A_PDN R3 1 Reg_5V L1 10u 4 3 2 1 4112A_3.3V 2 C9 0.1u C10 + 10u
TORX
6 5
PORT1 6 GND VCC GND 5 OUT TORX176
C7 10u
+
JP1 TORX/BNC
R6 470
BNC
Reg_5V
B
J1 BNC
D1 1S1588 R8 75 C11 0.1u
4112A_3.3V
1 C12 0.1u C13 47u +
GND
CM0 CM1 OCKS1 OCKS0
1 2 3 4
S1
8 7 6 5
Reg_5V
MODE1
2
RP1
A
4 3 2 1
CM0 CM1 OCKS1 OCKS0
47k
Title Size
5
4
+ V 18k
3
TVDD
OCKS1
26
OCKS1
4
V
OCKS0
25
OCKS0
5
XTI
MCKO1
24
4112A_MCLK Reg_5V
6
XTO
MCKO2
23
7
PDN
DAUX
22 1 4112A_BICK 74HCT14 20 4112A_SDTO 3 4112A_LRCK U2B 4 R4 1k U2A 2 R2 1k LE1 ERF
C
8
R
BICK
21
9 C8 0.1u
AVDD
SDTO
LE2 FS96
10
AVSS
LRCK
19
74HCT14
11
RX1
ERF
18 5 U2C 6 R5 1k LE3 AUTO
12
DIF0
FS96
17
74HCT14 16 Reg_5V V 9 U2D 8
13
DIF1
P/SN
R7 1k
LE4 V
B
Reg_5V
14
DIF2 AK4112A
AUTO
15
74HCT14
T1
LP2950A
OUT
IN
3 C14 47u + C15 0.1u
Reg_5V
A
Document Number
AKD4382
1
A3
Date:
3 2
AK4112A
Sheet
Rev
A
Tuesday, April 04, 2000
2
of
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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