Monday, May 24, 2010

32W Audio Amplifier Circuit based on TDA2050

Below is an amplifier circuit based power IC TDA2050. This circuit is able to give voice to the single output of 32W with good audio quality. IC2050 can be found on the market with ease, and sold at low prices.

32W Amplifier Schematic diagram:

TDA2050 Amplifier Schematic diagram

32W Amplifier PCB Design:

TDA2050 Amplifier PCB layout

  • Use heatsinks to absorb heat in the IC
  • Use recommended voltage value for maximum performance, see the datasheet.

Download TDA2050 datasheet for your electronics project reference.

About Audio Amplifier
An audio amplifier is an electronic amplifier that amplifies low-power audio signals (signals composed primarily of frequencies between 20 - 20 000 Hz, the human range of hearing) to a level suitable for driving loudspeakers and is the final stage in a typical audio playback chain.

The preceding stages in such a chain are low power audio amplifiers which perform tasks like pre-amplification, equalization, tone control, mixing/effects, or audio sources like record players, CD players, and cassette players. Most audio amplifiers require these low-level inputs to adhere to line levels.

While the input signal to an audio amplifier may measure only a few hundred microwatts, its output may be tens, hundreds, or thousands of watts. More explanation about power audio amplifier can be found at

This is a video tutorial about how to a very simple audio amplifier based on the LM386 amplifier chip. It can be built for less than $20 (or might be less than $8 in some countries) and used to amplify any low level audio signal including a guitar, bass or mp3 player.

Watch the video:

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