I was wanting to connect a 100W mono audio amplifier to the DAC of my Arduino. The amplifier uses a TPA3116D2 chip ( http://www.ti.com/lit/ds/symlink/tpa3116d2.pdf ) which has a differential input. The data sheet explains connecting the two thus: To use the TPA31xxD2 family with a single-ended sour…

How do I connect differential input amp to Arduino DAC?

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