the PCM2707C from Texas Instruments which takes care of the USB communication and outputs I2S audio data the PCM1794A, a 132dB SNR 24-bit 192kHz DAC which receives I2S protocol the OPA4134 ...
but it’s a remarkably tidy repurposing of the I2S hardware, which seems to be the gift that keeps on giving. (Here it is spitting out VGA video through a resistor DAC.) Code is available on ...