This part is a kind of semiconductor called AN7158N.

Function of this product has Dual 7.5W Audio Power Amplifier Circuit.

Manufacturers : Panasonic Semiconductor

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ICs for Audio Common Use AN7158N Dual 7.5W Audio Power Amplifier Circuit s Overview The AN7158N is an integrated circuit designed for power amplifier of 7.5W (16V, 4Ω) output with low noise and low distortion, and it suits TV set with multi-sound. Stereo operation is enabled due to incorporating two amplifiers on one chip. 12-pin SIL package enabled compact and high-densely mounted set. 15.0±0.3 3.6±0.2 7.7±0.25 1.0±0.5 12 11 10 9 8 7 6 5 4 3 2 1 2.54 Unit : mm 4.7±0.3 2.7±0.4 1.8R 30.0±0.3 24.0±0.3 1.26±0.25 tion and etc.) • Automatic operating point stabilizer circuit • Low distortion, low 1/f noise • Low shock noise from power ON/OFF operation • Better channel separation • Fewer external components 0.7±0.1 11 Ch.2 Output 1 VCC Ch.1 Output 2 0.35 + 0.1 – 0.05 [ ... ]

AN7158N PDF Datasheet Download