This part is a kind of semiconductor called UTC2822D.
Function of this product has DUAL LOW VOLTAGE POWER AMPLIFIER.
Manufacturers : YOUWANG ELECTRONICS
Image and pinout :

Some of the text within the PDF file :
UTC2822D/E LINEAR INTEGRATED CIRCUIT DUAL LOW VOLTAGE POWER AMPLIFIER DESCRIPTION The UTC2822D/E is a monolithic integrated audio amplifier in a 8-pin DIP and SOP package. It is designed for portable cassette players and radios. FEATURES *Wide operating supply voltage:Vcc=1.8V- 12V *Low crossover distortion *Low quiescent circuit current *bridge/stereo configuration ORDERING INFORMATION Device Package UTC2822D DIP-8-300-2.54 UTC2822E SOP-8-225-1.27 BLOCK DIAGRAM VCC 2 PIN CONFIGURATION INPUT1 7 NP1 8 INPUT2 6 NP2 5 1 OUTPUT1 3 OUTPUT2 OUTPUT 1 Vcc OUTPUT 2 GND 1 2 3 4 8 NF 1 7 INPUT 1 6 INPUT 2 5 NF 2 4 GND ABSOLUTE MAXIMUM RATINGS(Ta=25°C) Characteristic Symbol Supply Voltage VCC Output Peak Current IO(peak) Power Dissipation PD Operating Temperature Stor [ ... ]
UTC2822D PDF Datasheet Download
