STA540/TDA7439 Amplifier Build added
I've finally finished and wrote up details of my STA540/TDA7439 Stereo amplifier build that can reach up to 20W into 8 ohms, or 40W into 4 ohm speakers.
It's controlled by a digital microprocessor which controls a stereo audio processor. This allows remote power, volume, input, balance and three bands of tone control.
Worth a read for finding out how I managed to integrate into one fairly smart looking case, power all circuits off a laptop PSU by using isolated DC-DC convertors and wrote efficient software thanks to the BoostC compiler.
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DIY | ElectronicsCreated 16 Mar 2021