22W Mobile Car Stereo Power Amplifier PCB


Posted on Feb 5, 2014

The circuit diagram shows a powerful stereo amplifier which can deliver a power of 22W. It is built around popular single-chip audio power amplifier TDA1554Q (IC1). Here it is configured as two 22W stereo bridge amplifiers. Listening to songs stored in mobile phone while driving is dangerous. It`s also against laws. But you can use your mobile phone


22W Mobile Car Stereo Power Amplifier PCB
Click here to download the full size of the above Circuit.

as a stereo music source and it requires amplification to drive speakers. Also This does away with the need of a sophisticated in-dash car music system. The TDA1554Q is an integrated class-B power amplifier in a 17-lead single-in-line (SIL) plastic power package. The IC contains four identical 11W amplifiers with differential input stages and can be used as abridge amplifier that merges two amps to give 22W each channel. The gain of each amplifier is fixed at 20 dB. The amplifier is powered from the 12V car battery through RCA socket J2. Connect stereo sound signal from the 3. 5mm headset socket of the mobile phone to audio input socket J1. When you play the music from your mobile, TDA1554Q amplifies the input. The output of IC1 is fed to speakers LS1 and LS2 fitted at a suitable place in your car. The other circuit elements are quite common for all amplifiers.




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