TDA2822 is a dual-channel monolithic power amplifier integrated circuit developed by STMicroelectronics. It is usually used as an audio amplifier in pocket-type cassette players , radio cassette players and multimedia active speakers. It has the characteristics of simple circuit, good sound quality, wide voltage range, etc., and can work in stereo and bridge amplifier (BTL) circuit forms. Chip unique: wide power supply voltage range (1.8～15V, TDA2822M).