TDA2822 stereo amplifier circuit with pcb & datasheet

This is TDA2822 small stereo power amplifier.

People like TDA2822. Me too.

Why?

  • Dual Amplifiers in one DIP-8 similar for LM368.
  • Give power watts at 1W + 1W at 4 ohms speakers.
  • It is enough. We are happy Listening in our corner.
    Relax…
  • Start voltage supply of 1.8V to 15V. The wide a lot.
  • Save energy with only 6mA, Min.
  • The bandwidth expansion rates at 40dB 120kHz.
  • Cheap and easy to use

Note:
You can read more datasheet below.

It is a great idea.

You test the Arduino as a midi player. But its output is too weak.

You should increase the sound louder.

The TDA2822 is a 5V audio amplifier to this. It is one of a low voltage amplifier that is easies in the stereo system too.

Did you try it?  You may like it same me. I will show you the TDA2822 Stereo amplifier project with PCB.

TDA2822 Stereo amplifier circuit working

Look at the circuit diagram. It is a stereo system. Both channels are the same.

TDA2822 stereo amplifier circuit with pcb & datasheet

To begin with, the 9V from power supply—battery goes to the circuit. And, C3 is a filter capacitor to keep this voltage is more stable. When sound is too fluctuating.

Then, the stable voltage flows pin 2(Vcc) of IC1. And, negative voltage connects to GND of the circuit.

Both input signals left and the right pass VR1 and VR2. To adjust the volume of the music.

And, these capacitors C1 and C2 keep circuit stability and block DC voltage.

Next, the signal flows to inputs pin7,8 and pin 6,5 in sequent.

The circuit inside IC runs, It amplifies more power of sound.

The stronger signals come out of pin 1 (left output) and pin 3 (right output).

Also, C8 and C9 are the output capacitors to coupling the strong signals to the speakers.

And both The C6, R1 and C7, R2 reduce noise to the output.

Look: LM386 Stereo amplifier circuit

How to build this project

This project is a simple stereo amplifier in small size PCB see in Figure 2 and you can put all parts in the components layout.
tda2822-stereo-amplifier-pcb-layout
Figure 2 the PCB layout and the components layput of a stereo small amplifier using TDA2822

Stop! This is low watts for you, right?
Look:

TDA2030 Stereo Amplifier with PCB

The components list

IC1—TDA2822_DUAL POWER AMPLIFIER
Electrolytic capacitors
C1, C2—10μF 25V
C3—100μF 25V
C4, C5—470μF 25V
Polyester capacitors
C6, C7—0.1μF 63V
VR1, VR2—50K_Potentiometer
B1–3V to a 9V battery
Speaker 4Ω

Note:
My friend asks me how to connects the potentiometer to this project.

Please look at Figure 3
to-connect-potentiometer


 

TDA2822 datasheet-Dual power amplifiers

This is  TDA2822 datasheet as a dual power amplifier in portable radio on DIP 8pin. We can use as stereo configuration and Mono (Bridge audio amplifier).

Features
Short features as follows:

  • The supply voltage down to 3V can use with AA 3V battery.
  • Wide supply range 3V-16V
  • Up to 2W + 2W output power(highly popular).
  • Low crossover distortion
  • Low quiescent current.

TDA2822 of DIP-8

TDA2822 Pinout

Even its shape is as same as the famous 741 op-amps circuit. But TDA2822 pinout is different. Please be careful. See!

TDA2822 pinout connection
Pin connection (top view)

 

TDA2822 Block diagram inside

And, inside TDA2822 has 2 Op-amps is similar for 741.  But It has a lot of components more than.

With the power amplifier section.

Testing circuit

We can test this IC with 2 basic circuits.

Look:

Stereo module and Bridge module.

The stereo TDA2822 of typical application circuit
The stereo—output 1W + 1W of typical application circuit

Bridge TDA2822 of typicla application circuit
The Bridge—output 4 watts max of the typical application circuit.

Although Both are a testing circuit. But you can really use. Because It can get a great output sound on 4-8 ohms speaker.

External Idea circuits
TDA2822 Stereo Audio Amplifier Circuit
TDA2822 Dual Low-Voltage Power Amplifier, DIP-8

You may also like these circuits

BA5406 amplifier Stereo 3W
BA5406 amplifier Stereo 3W

Circuit diagram of Power Amplifier with tone control using TDA2005
Circuit diagram of Power Amplifier with tone control using TDA2005

Small Home Bridge amplifier with tone control

500mW amplifier circuit project using 12V
LM386 audio amplifier circuit with PCB

That’s not all…

Look:

A lot of Power amplifier circuit diagram with PCB
Audio amplifier circuit diagram with layout

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Solomon

Dear Sir,

We are interested in assembling car stereo cabinet with usb/mmc, Please send us the circuit diagram, with product cataloger and the cost and also send us your different range of products.

With Regards,
Solomon
91-9505303636

enner

gracias por el aporte me puedes decir cuales son las medidas del pcb por fa

enner

thanks for the contribution What can you tell me the dimensions pcb son by fa

ashesh ranjan

it can give brass bosst

Salim Khan

Thanks.

someone

your scentences are too long and don’t make any sense.
you need to improve your grammar.

hirwa juldas

this circuit is so nice and i’m thankin’ for designers,thx alot.

chayapon

Hi, someone
Thanks for your feedback.
Yes, my English is poor.
If your projects finished please share me.

chayapon

Hi, hirwa juldas
Thanks for your feedback.

aziz

please sir some doubt in your project : in circuit R1 4.7 but in your parts list is not included this item, what item this pleas explain me please and what is input output?

chandu

Hi,Sir How to produce negitive voltage(-12v)
with out using ic

if in case we can use ic wich no of ic can be use

Ahmadaremu

thanks may God increase your knowledge

seyed

very gooooooooooooooooooooooooooood

Rahil shaikh

Dear sir,
How to insert the microphone in this circuit

leneoj

where is the ground source signal and ground circuit?

Jack

please can someone tell me what the sound quality is like

Dixondimitrywolf

I made it and its works well but i change the C Out filter value to 33nF and its still works well!
btw thanks for PCB Layout

Dikka

Where is the potensio??

Jorge

El circuito no se corresponde con los componentes, pones 2 condensadores de 0,1 y en el pcb solamente hay sitio para uno, pones condensadores 470 25V y en el circuito son de 16V, si vas a subir algo , nadie te obliga pero si lo haces,hazlo bien, porque hay gente que cree que puedo montarlo y luego se encuentra que falta información o está mal puesta. The circuit does not correspond to the components , put 2 capacitors 0.1 and the pcb there is only room for one , put capacitors 470 25V and 16V circuit are , if you… Read more »

brajesh mehra

it is good.

Nelu Arnaut

Work whit small sound quality

Erasmus Nashiwaya

please help me ,i want to design a 50 watts power audio amplifier using TDA2025 IC,I NEED THE CIRCUIT

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