Ic Block Diagram - NAD T 751 Service Manual

IC BLOCK DIAGRAM

AC3 BOARD
U101: 74HC153
AC3 BOARD
U102: 74HC157
AC3 BOARD
U103: CS5331A
14
A
2
B
1
1G
6
1C0
TG
5
1C1
TG
4
1C2
TG
3
1C3
TG
15
2G
10
2C0
TG
11
2C1
TG
12
2C2
TG
13
2C3
TG
2
1A
3
1B
5
2A
6
2B
11
3A
10
3B
14
4A
13
4B
15
G
1
A/B
Voltage Reference
8
+
AINL
LP Filter
-
S/H
5
+
AINR
LP Filter
-
S/H
6
AGND
7
VA+
TG
7
1Y
TG
TG
9
2Y
TG
4
7
9
12
MCLK
4
Digital
+
Decimation
-
Filter
DAC
Comparator
Digital
+
Decimation
-
Filter
DAC
Comparator
39
1G 1 16 VCC
B 2 15 2G
1C3 3 14 A
1C2 4 13 2C3
1C1 5 12 2C2
1C0 6 11 2C1
1Y 7 10 2C0
GND 8 9 2Y
1Y
A/B 1 16
2Y 1A 2 15
1B 3 14
1Y 4 13
2A 5 12
3Y
2B 6 11
2Y 7 10
GND 8 9
4Y
SCLK LRCK
2 3
Serial Output Interface
1
High
Pass
Filter
High
Pass
Filter
VCC
G
4A
4B
4Y
3A
3B
3Y
SDATA