This part is a kind of semiconductor called AN7125.

Function of this product has Dual Channel BTL Power Amplifier.

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

ICs for Audio Common Use AN7125 Dual Channel BTL Power Amplifier s Overview AN7125 is a monolithic integrated circuit designed for 13.5 W (12 V,4 Ω) output audio power amplifier.It is a dual channel BTL IC suitable for stereo operation in radio cassette and TV application. 29.75±0.30 28.0±0.3 20.0±0.3 7.7±0.3 Unit : mm 12 (10.0) φ3.6 (1.27) (1.3) • Built-in muting pin • Built-in stand by pin • Built-in thermal shutdown protection circuit • Built-in current limiting circuit • High power : (13.5 W/12 V/4 Ω) (13.0 W/15 V/8 Ω) • Few external components • Operating voltage range 6 V ∼ 18 V (12 V typ.) R1.8 0.6 +0.10 0.25 –0.05 2.54 1 0.6 –0.05 (1.27) (10.0) s Features +0.15 (12.5) 1.45±0.15 1.2±0.1 (1.2) 19.1±0.3 21.9±0.3 HSIP012-P-0000A s A [ ... ]

AN7125 PDF Datasheet Download