This part is a kind of semiconductor called TDA1552Q.

Function of this product has 2 x 22 W BTL stereo car radio power amplifier.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

INTEGRATED CIRCUITS DATA SHEET TDA1552Q 2 x 22 W BTL stereo car radio power amplifier Product specification File under Integrated Circuits, IC01 July 1994 Philips Semiconductors Product specification 2 x 22 W BTL stereo car radio power amplifier GENERAL DESCRIPTION TDA1552Q The TDA1552Q is an integrated class-B output amplifier in a 13-lead single-in-line (SIL) plastic power package. The circuit contains 2 x 22 W amplifiers in Bridge Tied Load (BTL) configuration. The device is primarily developed for car radio applications. Features • Requires very few external components • High output power • Low offset voltage at outputs • Fixed gain • Good ripple rejection • Mute/stand-by switch • Load dump protection • AC and DC short-circuit-safe to ground and VP QUICK REFER [ ... ]

TDA1552Q PDF Datasheet Download