Stereo mini power amplifier made with TDA2822

TDA2822 is a low-voltage low-power integrated power amplifier circuit produced by SGS Company. Because of its extremely low price (a few cents) and simple wiring, it is widely used in low-end radio cassette players and small speakers.

TDA2822 adopts a dual-channel design, with a maximum power supply voltage of 15V, a maximum current of 1.5A, and a minimum input resistance of 100KΩ. When the input voltage is 9V, the output is 4Ω, and the frequency is 1KHZ, the output power is 1.7W/channel. .

TDA2822 can be used as a power amplifier for MP3, portable V CD (DVD), radio, and player. This article introduces the mono and stereo circuit diagrams of TDA2822 as follows:

TDA2822 mono amplifier

TDA2822 two-channel power amplifier