So the CM voltage pin on the ADAU1966 can be 1.5V or 2.25V depending on supply voltage.
It should be 1.5V with 3.3V analog supply, and 2.25V with 5V. So why do I have 1.5V with 5V supply?
The evaluation board manual states that pin 44, used for configuration in standalone mode selects 1.5V (set to 1) or 2.25V (set to 0). However the Rev E datasheet states this should always be set to 0 for standalone mode. Nothing like inconsistent data to help you.
I have tried changing this pin with no difference, the investigation will continue...
An electronics engineer and a long term electronics hobbyist. I like tinkering with stuff and making things.