This part is a kind of semiconductor called TA8227P.

Function of this product has LOW FREQUENCY POWER AMPLIFIER.

Manufacturers : UTC

Image and pinout :

Some of the text within the PDF file :

UTC TA8227P LINEAR INTEGRATED CIRCUIT LOW FREQUENCY POWER AMPLIFIER DESCRIPTION The UTC TA8227P is an audio power IC with built-in two channels developed for portable radio cassette tape recorder with power ON / OFF switch. Because of the parts reduction and DIP, space merit is remarkable. Thermal shut down protection circuit is built in. FEATURES *Wide operating supply voltage: Vcc=5~12V *Low popping noise at power ON *Best for supply voltage 9V *Output power Po=2.5W/CH at Vcc=9V, RL=4Ω, f=1kHz, THD=10% Po=3.0W/CH at Vcc=9V, RL=3Ω, f=1kHz, THD=10% *Soft Clip *Built-in Thermal shut-down protection circuit *Stand-by Switch DIP-12H BLOCK DIAGRAM UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R107-011,B UTC TA8227P 1. Adjustment of voltage gain LINEAR INTEGRATED [ ... ]

TA8227P PDF Datasheet Download