Can you tell what different settings you use between yours and Yveaux's? about ac101

[schreibfaul1]

Hello nilsnl68,
In principle you can use the original AC101 Lib.
Distortions are audible, especially at higher sample rates, which are caused by the PLL that has run out of step. This is eliminated by changing PLL_CTRL1 and PLL_CTRL2, see here: https://www.mikrocontroller.net/topic/474383#new
ADC_SDR and OMIXER_SR swap the channels and ADC_APC_CTRL configures the right channel correctly.