Sanyo AVD-8501, Service Manual

Page: 54 / 110

- 69 -
IC BLOCK DIAGRAM & DESCRIPTION
IC861 PCM1602Y (Digital to Analog Converter)
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
37
38
39
40
41
42
43
44
45
46
47
48
RST
SCKI
SCKO
BCK
LRCK
TEST
V
DD
DGND
DATA1
DATA2
DATA3
ZEROA
24
23
22
21
20
19
18
17
16
15
14
13
V
DD
3
AGND3
V
CC
4
AGND4
NC
AGND6
V
CC
5
AGND5
NC
V
COM
V
OUT
1
V
OUT
2
1 2 3 4 5 6 8 9 9
10
11 12
ZERO1/GPO1 ZERO2/GPO2 ZERO3/GPO3 ZERO4/GPO4 ZERO5/GPO5 ZERO6/GPO6
NC NC
V
OUT
6
V
OUT
5
V
OUT
4
V
OUT
3
36 35 34 33 32 31 30 29 28
27
26 25
ML MC MDI MDO NC NC NC NC V
CC
1
AGND1 V
CC
2
AGND2
DAC
DAC
DAC
DAC
DAC
DAC
4x8x
Oversampling
Digital Filter
with
Function
Controller
Enhanced
Multilevel
Delta-Sigma
Modulator
Serial
Input
I/F
Function
Control
I/F
System Clock
Manager
System Clock
Zero Detect Power Supply
38
33
34
35
36
37
42
45
46
47
41
40
BCK
TEST
14 V
OUT
1
V
OUT
2
V
OUT
3
V
COM
V
OUT
4
V
OUT
5
V
OUT
6
13
12
15
11
10
9
39
SCKO
48
ZEROA
1
ZERO1/GPO1 ZERO2/GPO2 ZERO3/GPO3 ZERO4/GPO4 ZERO5/GPO5 ZERO6/GPO6
2 3 4 5 6
V
DD
43
DGND
44
V
CC
1-5
28,26.24
22,18
27,25.23
21,17,19
AGND1-6
RST
ML
MC
MDI
MDO
SCKI
LRCK
DATA1(1,2)
DATA2(3,4)
DATA3(5,6)
PCM1602