ADAU1701 SDATA_OUT2(I2S-2, DIG4/DIG5) Inverted Data Issue

Hello

I was developed my own ADAU1701 single board which has three I2S output connector (SDATA_OUT0 / SDATA_OUT1 / SDATA_OUT2).

I've tested this feature with my PCM5102 DAC boards.

I checked with SigmaStudio v4.4 Just through from embedded ADC to I2S.

All the output analog signal's absolute phase was correct except SDATA_OUT2. (My design had inverted embedded DAC signals)

But the SDATA_OUT2 (External DAC#2) Output phase was like this (Orange Trace is SDATA_OUT2)

X-Y Compare DAC0 and DAC2 (Blue trace is SDATA_OUT2)

I swapped DAC boards, but the result was the same as above.

I guess this must be an issue on SigmaStudio4.4 or ADAU1701 chip.

How do you think about this?

Regards,

HILO

Audio Signal Processors

SigmaDSP Audio Processors

adau1701