KA2209 Datasheet
Datasheet of KA2209 stereo 1W audio amplifier
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2x1W Stereo Amplifier with IC KA2209
This is 2x1W stereo amplifier circuit based on single IC KA2209. IC KA2209 is an equivalent IC to the TDA2822, you can use TDA2822 if you can’t find KA2209. It is ideal for battery powered operation since the supply required for this circuit is 2V to 9VDC. Power output depends critically on speaker resistance &… Read More »
2 x 1W Stereo Amplifier
Circuit diagram of 2 x 1W Stereo audio Amplifier with IC KA2209
1W Stereo Headphone Amplifier based TDA2822
Above circuit diagram is the schematic of 1W stereo headphone amplifier. The circuit is built based TDA2822, designed for use in portable players, radios and other common electronic devices which can use headphone for the audio output.