ADAU1701 demodulation AM from SDR IQ(quadrature) - how to ?

ADI North America will be on annual shutdown December 24, 2022 through January 2, 2023; perhaps another community member can assist you until our return on January 3.

Hello Yaro2006,

We do have the Hilbert Transform which will output the real and imaginary signal derived from the input.

Have a look at this post and the others it links to:

(+) Is it possible design FSK modulator/demodulator on SigmaDSP? - Q&A - SigmaDSP Processors & SigmaStudio Dev. Tool - EngineerZone (analog.com)

This should get you started. It is some of KJBob's brilliant work on the forum.

Dave T