8 Channel DIY Digital Audio Amplifier

 

 

Here is my PCB for the tas5518 modulator.

 

It has an spdif receiver (DIR1703) for stereo source and a possible connection to a DSP device via I2S. The tas5518 modulator is connected to 8 tas5121 output stages.


The control part is done with an MSP430 also from texas (essentially driving an lcd and receiving infrared commands to control the modulator)
A second board (Front panel board) feature the LCD and the IR receiver.


Have a look at the pictures and schematics (in Eagle format) and also Gerber&excellon files

 

 

Main Board

Schematics pic

PCB pic

Front Panel

Schematics pic

PCB pic

 

 

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More Pictures

Main Board Files

Front Panel Files