Integra DTR-7.8 Service Manual page 113

QQ
3 7 63 1515 0
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS -11
Q2027, Q4304, Q7181: NJU7312AM(Analog Function Switch)
BLOCK DIAGRAM
L-COM1
L-COM2
L-COM3
TE
L 13942296513
TERMINAL DESCRIPTION
Pin No. Pin Name
1 VEE
2 L1
3 L2
4 L3
5 L-COM1
L4
6
7 L5
8 L6
9 L-COM2
10 L7
11 L8
12 L-COM3
14 ST
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15 VSS
.
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L1
L2
L3
L4
L5
L6
L7
L8
ST
Control Circuit
VDD
VEE
Description
Negative Voltage Supply
Analog switch input/output
Analog switch input/output
Analog switch input/output
L1, L2, L3 Common
Analog switch input/output
Analog switch input/output
Analog switch input/output
L4, L5, L6 common
Analog switch input/output
Analog switch input/output
L7, L8 Common
Chip enable
GND
x ao
y
i
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8
Q Q
3 6 7 1 3
Pin No. Pin Name
16 CK
17 DATA
19 R-COM3
20 R8
21 R7
22 R-COM2
23 R6
24 R5
R4
25
R-COM1
26
27 R3
28 R2
29 R1
30 VDD
u163
.
2 9 9 4 2 8
R1
R2
R3
R-COM1
R4
R5
R6
R-COM2
R7
R8
R-COM3
DATA
CK
1 5 0 5 8 2 9 9 4
VSS
Description
Clock input/output
Data input
R7, R8 Common
Analog switch input/output
Analog switch input/output
R4, R5, R6 Common
Analog switch input/output
Analog switch input/output
Analog switch input/output
R1, R2, R3 Common
Analog switch input/output
Analog switch input/output
Analog switch input/output
m
Positive voltage supply
co
DTR-7.8
9 9
2 8 9 9