TDA2822 is a low-voltage, low-power integrated amplifier circuit produced by SGS. Due to its extremely low price (a few cents per unit) and simple circuit, it is widely used in low-end tape recorders and small speakers.
TDA2822 adopts a dual-channel design with a maximum 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 VCD (DVD), radio, and single player. This article introduces the circuit diagrams of TDA2822 made into mono and stereo as follows:
TDA2822 mono amplifier
TDA2822 dual channel amplifier
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