This post explains for the amplifier.
The Part Number is AN17821A.
The function of this semiconductor is BTL 5.0W x 2ch Power Amplifier.
The package is SIL 12 Pin Type
Manufacturer: Panasonic, Matsushita Electric
Images:
Description:
This is BTL 5.0W x 2ch Power Amplifier with Standby Function and Volume Function.
Absolute Maximum Ratings
1. Supply Voltage : Vcc = 14.4 V
2. Supply Current: Icc = 2 A
3. Power Dissipation: Pd = 1.92 W
4. Storage Temperature : Tstg = 55 ~ +150°C
5. Operating Ambient Temperature : Topr = -25 ~ +70°C
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Applications:
1. Low Frequency Amplifier
