Home Projects Audio Mini Stereo Audio Amplifier

 
 

Mini Stereo Audio Amplifier
author: Rajkumar Sharma


This project is a Mini Stereo Audio Amplifier based on TDA2822 IC.



Description


The dual low power amplifier built around TDA2822 8pin DIP. IC, it is mainly designed to use in portable players, radios and other building block project. A 3V supply can be used to drive headphones providing 20mW in 32 Ohms per channel, and a 12V power supply will provide 1W in 8 Ohm per channel for small loudspeakers.

Specifications

Supply 9V DC (supply Range 3V to 12V)
Load 8 Ohm Speaker
Gain 39dB
Input Impedance 100K Ohm
THD 10%
Frequency Response 20Hz to 20Khz

 


Schematic



Parts List


 

PCB


 


 
 

 
120x90 spot

 

 

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