This part is a kind of semiconductor called TDA7297D.

Function of this product has 10W+10W DUAL BRIDGE AMPLIFIER.

Manufacturers : ST Microelectronics

Image and pinout :

Some of the text within the PDF file :

TDA7297D 10W+10W DUAL BRIDGE AMPLIFIER 1 ■ ■ ■ FEATURES TECHNOLOGY BI20II WIDE SUPPLY VOLTAGE RANGE (6.5 - 18V) OUTPUT POWER 10+10W @ THD = 10%, RL = 8Ω, VCC = 13V MINIMUM EXTERNAL COMPONENTS – NO SVR CAPACITOR – NO BOOTSTRAP – NO BOUCHEROT CELLS – INTERNALLY FIXED GAIN STAND-BY & MUTE FUNCTIONS SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTIONE Figure 1. Package PowerSO20 (SLUG UP) ■ Table 1. Order Codes Part Number TDA7297D Package PowerSO20 (SLUG UP) ■ ■ ■ 2 DESCRIPTION The TDA7297D is a dual bridge amplifier specially designed for Home Audio, Plasma TV, LCD TV applications. Figure 2. TEST AND APPLICATION CIRCUIT VCC JP1 R1 47K R2 47K IN1 S-GND R3 10K 9 C4 10µF Vref C5 0.22µF IN2 MUTE R4 10K 8 C6 1µF 1 10 11 PW-GND 20 + D02AU1407 +5V C3 0.22µF [ ... ]

TDA7297D PDF Datasheet Download