– 89 –
MD-E9000H
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.
IC1701 VHiUDA1345/-1: AD/DA Converter (UDA1345)
Pin No.
Function
Terminal Name
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Figure 89 BLOCK DIAGRAM OF IC
VDDA(ADC) VSSA(ADC) VADCP VADCN
Vref(A)
VINR
MC1
MC2
MP5
MP2
MP3
MP4
SYSCLK
VOUTR
Vref(D)
VSSA(DAC)
VDDA(DAC)
VSSO
VDDO
VOUTL
MP1
DATAI
WS
BCK
DATAO
VSSD
VDDD
VINL
ADC
0dB/6dB
switch
ADC
DECMATION FILTER
DC-CANCELLATION FILTER
DIGITAL
INTERFACE
L3-BUS
INTERFACE
DSP FEATURES
INTERPOLATION FILTER
NOISE SHAPER
DAC
DAC
2
3
4
5
1
7
8
9
6
12
13
14
15
11
17
18
19
10
16
22
23
24
25
21
27
28
20
26