Hello,
Posting on behalf of my customer:
I discovered that if I run the ADC12 from the DCO at calibrated 12 MHz, and divide it by 3 (you have register settings to do this) to operate at 4 MHz, the noise and linearity performance is WAY out of spec. I can operate it from other clock settings (including 8 MHz / 2) just fine. I’d like to get to the bottom of it if possible.
Is this expected behavior, and if so, what is the cause?
Thanks,
Keith N.
AFA OH/wPA