This part is a kind of semiconductor called TA8211AH.

Function of this product has DUAL AUDIO POWER AMPLIFIER.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

TA8211AH TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8211AH Dual Audio Power Amplifier The TA8211AH is dual audio power amplifier for consumer applications. This IC provides an output power of 6 watts per channel (at VCC = 20 V, f = 1 kHz, THD = 10%, RL = 8 Ω). It is suitable for power amplifier of TV and home stereo. Features · · High output power: Pout = 6 W/channel (Typ.) (VCC = 20 V, RL = 8 Ω, f = 1 kHz, THD = 10%) Low noise: Vno = 0.14 mVrms (Typ.) (VCC = 28 V, RL = 8 Ω, GV = 34dB, Rg = 10 kΩ, BW = 20 Hz~20 kHz) · · · Very few external parts Built in thermal shut down protector circuit Operating supply voltage range: VCC (opr) = 10~30 V (Ta = 25°C) Weight: 4.04 g (typ.) Block Diagram VCC 6 Ripple Filter INPUT1 4 8 5 3 1 11 AMP2 INPUT2 2 IN2 OUT2 12 [ ... ]

TA8211AH PDF Datasheet Download