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4.21 NJM4580L (IC902) : Dual Operational Amplifier
• Terminal layout
4.22 RT9161 / A-27CG-X (IC105) : Regulator
• Pin layout
1
GND
• Pin function
Pin Name
Function
VOUT
Output Voltage
GND
Ground
VIN
Power Input
4.23 STK402-070 (IC602) : 2-ch audio power amplifier
• Terminal layout
• Block diagram
PRE-VCC
SUB G
1-62 (No.22041)
2
3
VIN
VOUT
(TAB)
IN 1
NF 1
A
B
- +
+ -
1 2 3
4
5 6 7 8
• Block diagram
VIN
Error Amp
1.2V
Reference
1. A OUTPUT
2. A -INPUT
3. A +INPUT
4. V -
5. B +INPUT
6. B -INPUT
7. B OUTPUT
+
8. V
VOUT
GND
VCC
VSS
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