Circuit power audio amplifier stereo 2x 1 watts tda2822 – Dual low-voltage power amplifier With PCB
By Toni on Sep 16, 2010 with Comments 6 Viewed 7,648 views times
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
Suggested 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 |
Users electronic tags:
tda2822, amplifier lay out, tda 2822m
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
Could be supplied trough USB port? Or the usb can be damaged? Sorry for my english!
Hi Tronic
You can use the USB port! Good job!
I do not speak English, too! XD
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.
Hi korrill
2 x 1 Watts
sir,
is there any way to make a booster for cell phone gprs signal using the same IC or other?