Sharp MD-E9000H Service Manual page 89

IC1701 VHiUDA1345/-1: AD/DA Converter (UDA1345)
Pin No. Terminal Name
1 VSSA (ADC) AD converter analog ground.
2 VDDA (ADC) AD converter analog power.
3 VINL AD converter input. (left)
4 VREF (A) AD converter reference voltage.
5 VINR AD converter input. (right)
6 VADCN AD converter reference voltage N.
7 VADCP AD converter reference voltage P.
8* MC1 Mode control 1. (Pulled-down)
9* MP1 Multipurpose pin 1.
10 VDDD Digital power.
11 VSSD Digital ground
12 SYSCLK System clock 256 fs, 384 fs, 512 fs.
13 MP2 Multipurpose pin 2 .
14 MP3 Multipurpose pin 3 .
15 MP4 Multipurpose pin 4 .
16 BCK Bit clock input.
17 WS Word select input.
18 DATAO Data output.
19 DATAI Data input
20* MP5 Multipurpose pin 5. (Pulled-down)
21* MC2 Mode control 2. (Pulled-down)
22 VSSA (DAC) DA converter analog ground.
23 VDDA (ADC) DA converter analog power.
24 VOUTR DA converter output. (right)
25 VDDO Opeamp power.
26 VOUTL DA converter output. (left)
27 VSSO Opeamp ground.
28 VREF (D) AD converter reference voltage.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
VINL
V DDD
V SSD
DATAO
DATAI
VOUTL
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V DDA(ADC) V SSA(ADC) V ADCP V ADCN
1
2
0dB/6dB
3
switch
10
DECMATION FILTER
11
DC-CANCELLATION FILTER
18
DIGITAL
16
BCK
INTERFACE
WS
17
19
MP1 9
DSP FEATURES
INTERPOLATION FILTER
NOISE SHAPER
26
25 27
V DDO
V SSO V DDA(DAC)
Figure 89 BLOCK DIAGRAM OF IC
Function
V ref(A)
7
6 4
ADC ADC
L3-BUS
INTERFACE
DAC DAC
22 28
23
V SSA(DAC)
Vref(D)
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MD-E9000H
5
VINR
8 MC1
21
MC2
20 MP5
13
MP2
14
MP3
15
MP4
12
SYSCLK
24 VOUTR