This part is a kind of semiconductor called TDA2822H.

Function of this product has Dual Low Voltage Power Amplifier.

Manufacturers : Unisonic Technologies

Image and pinout :

Some of the text within the PDF file :

UNISONIC TECHNOLOGIES CO., TDA2822H LINEAR INTEGRATED CIRCUIT DUAL LOW VOLTAGE POWER AMPLIFIER  DESCRIPTION The UTC TDA2822H is a monolithic integrated audio amplifier in a 8-Pin plastic dual in line package. It is designed for portable cassette players and radios.  FEATURES *Wide operating supply voltage: VCC=1.8V~ 6V. *Low crossover distortion. *Low quiescent circuit current. *Bridge/stereo configuration.  ORDERING INFORMATION Order Number Lead Free Halogen Free TDA2822HL-D08-T TDA2822HG-D08-T TDA2822HL-S08-T TDA2822HG-S08-T TDA2822HL-S08-R TDA2822HG-S08-R Package DIP-8 SOP-8 SOP-8 DIP-8 SOP-8 Packing Tube Tube Tape Reel www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd 1 of 3 QW-R107-016.C TDA2822H  PIN CONFIGURATION LINEAR INTEGRATED [ ... ]

TDA2822H PDF Datasheet Download