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Can ADAU1977 support unbalanced output MIC with diagnostic feature?

Question asked by EVAN_2013 on Nov 21, 2017
Latest reply on Feb 5, 2018 by Rajeev

Hi ADI colleague


the MIC output specification:

The MIC output

Mic phantom power supply requirements:

-  Supply voltage:  8.5 +/- 0.5V

Mic output characteristics: 

-  Output type:  Unbalanced output

-  Maximum AC signal output voltage:  2 Vrms

-  Output impedance:  1kohm


If the MIC output is unbalanced output, ADAU1977 cannot support diagnostic fuction.

Is my understanding right?

Thank you for you support!