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PCM1681-Q1: Distorsion on DAC output channel 4/8

Part Number: PCM1681-Q1
Other Parts Discussed in Thread: PCM1681

Hello,

I have a problem with a PCM1681 8-channel DAC.

At 0dB FS, outputs 1 to 4 work perfectly well. On outputs 5 to 8 the waveform is saturated only on the positive.

The measure was make directly on the DAC outputs before link capacitors.

This happens in I2S mode with DATA 1 / 2 / 3 / 4 used and too in TDM mode with only DATA1 used.

THD is 10% on channels 5 to 8.

I changed the DAC and problem is the same.

Do you have an idea ?