This part is a kind of semiconductor called TDA7498.

Function of this product has 100-watt + 100-watt dual BTL class-D audio amplifier.

Manufacturers : STMicroelectronics

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TDA7498 100-watt + 100-watt dual BTL class-D audio amplifier Features ■ 100-W + 100-W output power at THD = 10% with RL = 6 Ω and VCC = 36 V ■ 80-W + 80-W output power at THD = 10% with RL = 8 Ω and VCC = 34 V ■ Wide-range single-supply operation (14 - 39 V) ■ High efficiency (η = 90%) ■ Four selectable, fixed gain settings of nominally 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dB ■ Differential inputs minimize common-mode noise ■ Standby and mute features ■ Short-circuit protection ■ Thermal overload protection ■ Externally synchronizable PowerSSO36 with exposed pad up Description The TDA7498 is a dual BTL class-D audio amplifier with single power supply designed for home systems and active speaker applications. It comes in a 36-pin PowerSSO package with exposed pad up ( [ ... ]

TDA7498 PDF Datasheet Download