Circuit power audio amplifier stereo IC TDA2822 – 2x 1 W

Circuit power audio amplifier stereo IC TDA2822 – 2x 1 W

Circuit power audio amplifier stereo 2x 1 watts tda2822 - Dual low-voltage power amplifier With PCB

TDA2822 is an ideal Op amp for low output applications. It is a good choice as a preamplifier in stereo high power amplifier circuits. It has two inputs and two outputs which can deliver 250 milli watts output power. The amplifier circuit with in the IC is well set for noise free operation. Outputs can be directly coupled to the speakers through the decoupling capacitors.

Scheme for the amplifier dual (stereo), using integrated tda2822

Scheme for the amplifier dual (stereo), using integrated tda2822Suggested PCB mount amplifier

Pcb version 1
Pcb version 2

Suggested PCB mount amplifier component layout click for enlarge

Characteristics for tda2822

  • supply voltage down to 1.8v
  • low crossover distortion
  • low quiescent current
  • bridge or stereo configuration

The TDA2822M is a monolithic integrated circuit in 8 lead Minidip package. It is intended for use as dual audio power amplifier in portable  radios.

List of material for mounting a stereo amplifier with tda 2822

Parts Value
C1,C2 10uF/ 25 Volts Electrolytic
C3, C4, C5, C8,C9 100nF Polyester – 104 or 0.1 or .1 or 100n
C6, C7 470uF /25 Volts Electrolytic
IC1 TDA2822M
P1 10K Potentiometer Duple – Volume control
R3, R4 4.7 Yellow, Violet, Gold, Gold
R5, R6 10K Brown, Black, Orange, Gold
VCC, OUT, IN Connectors

Download Eagle files

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  1. i tried to make this one, and partly it succeeded, i have to much of ground noise, how can i eliminate that?
    i dont have a potentiometer at hand so i did hook it up directly wonder if the ground noise is related or not, and if related, is there a way to use this circuit without an potentiometer? i would like to hook directly in and have an out so that there is no volume control

  2. Good morning, sir.

    I would just like to ask: is there a way to make this amplifier have a 2 x 2 watts output?

    I’m not an electrician and I know very little about electronic circuits so I would appreciate it very much if you could assist me with this regard.

    Thank you very much.