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POWER AMPLIFIER (IC101: TA8248K)
The power amplifier is a two-channel amplifier with standby switch.
The following table shows the pin function of IC101.
Pin No.
Terminal
1
NC
2
B.S.2
3
OUT2
4
VCC
5
OUT1
6
B.S.1
7
Power GND
8
Stand by
9
DC
10
NF1
11
IN1
12
IN2
13
NF2
14, 15
Pre GND
In/Out
—
Not used
—
Terminal for a bootstrap capacitor
Out
Channel 2 output
In
+9 V source
Out
Channel 1 output
—
Terminal for a bootstrap capacitor
In
Ground (0 V) source
In
Power control signal input. 0 V: Off, +9 V: On
—
Terminal for a decoupling capacitor
In
Negative feedback input
In
Channel 1 input
In
Channel 2 input
In
Negative feedback input
In
Ground (0 V) source
— 10 —
Function
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