General integrated amplifier circuit external components and need more larger heatsink. This paper presents a simple amplifier circuit, made easy. TDA2822 amplifier integrated circuits used in music players, portable DVD and other audio playback; power is not great but you can satisfy the requirements of the hearing, and the circuit is simple, good sound quality, wide voltage range of characteristics such as the amateur production Small amp better choice.
This is a small amplifier using TDA2822 chip. Including volume control. A 12 volt power supply is ideal for supply, which can be a source with batteries or transformer. It is not necessary to use heat sink.
Circuit audio amplifier in bridge (bridge) using the ic tda2822 with volume control – 2 watts
Scheme for mounting the circuit click to enlarge
Printed circuit board for amplifier tda2822
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For a stereo version is only set up two identical circuits, and a dual pot to adjust the volume.
List of components for assembly of the amplifier tda2822
| Component | Value |
| C1 | 10nF |
| C2 | 100nF |
| C3 | 100nF |
| C4 | 110µF/16v |
| C5 | 10µF/16v |
| ENTRADA | Connector audio input |
| IC1 | TDA2822 |
| P1 | 50K – potentiometer |
| R1 | 10K |
| R2 | 4.7 |
| R3 | 4.7 |
| SAIDA | Connector audio output |
| VCC | Connector power supply |
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built the tda2822m bridge mode amp. ic gets very hot on 12volts 900milli amp. how to fix it please?
tasarım için teşekkürler tda 2822 boyutuna ve fiyatına göre kaliteli ses veren bir entegredir
There’s certainly in Table C4 properly written, it is in the scheme of 10 mF
friend thanks for the circuit helped me a lot .. I can say it is called the program that where you have the components. are very real, I would greatly appreciate digest the name of that program thanks in advance
cordial saludo:
amigo gracias por el circuito me sirvió de mucho.. me pueden decir como se llama el programa ese donde tiene los componentes. se ven muy reales le agradecería mucho que me digieran el nombre de ese programa de antemano gracias
Hi Toni Thankx for the circuit . But Can you tell me That how to Deliver maximum Wattage From this 2822 amp By providing it 3.7 Volts , As your circuit is based upon 12 Volts , Please solve my this query .Thak you
Hi, I’ve been looking for a SPICE model for the TDA2822 without any luck. I’ve done numerous web searches and checked the ST site. I’ve even emailed their Tech. Support without any response.
Do you have any ideas where I might find one?
Regards
Graeme
Hi Graeme
Also not found
Thanks Toni, was worth a try 🙂
Graeme
What’s P1 ? is this variable resistor?
Yes, is the potentiometer for volume control
thankyou for circuit