Archive - April 16, 2016

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left-justified DAC problems continue

left-justified DAC problems continue

Here you see the analog sound waveform coming out of the DAC at the top in yellow.

I think I’m getting closer……I switched from the I2S DAC to a left-justified DAC just because the LJ one is a little simpler to design around….the MSB for the DATA is lined up with the LRCLK transition……

The digital channels below are the input to the DAC:

D3 is the serial data

D2 is SCLK

D1 is LRCLK

D0 is the MCLK

dac_troubleshoot

Latest audio clip: