KS-FX321
1-18 (No.49771)
4.5 LC75421M-X (IC931): E. volume
• Pin layout
• Block diagram
36 ~ 19
1 ~ 18
34
33
32
31
30
29
28
27
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25
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23
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21
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19
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8
7
6
5
4
3
2
1
36
35
CCB
INTERFACE
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
LVref
RVref
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