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20W Stereo Power Amplifier Circuit based TDA2005




20W Stereo Power Amplifier Circuit based TDA2005


This is the stereo power amplifier circuit powered using amplifier chip TDA2005. It is required 2 pieces of TDA2005. Each channel build based bridge amplifier circuit, the loudspeaker terminal should not connected to ground.


Download the schematic diagram and PCB layout (top and bottom) from the following link:
» Download Link

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 wikipedia.org


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