I'm currently debugging a daughter card for the nRF8122 evaluation board but there's a higher voltage and current on that daughter card.
I want to know how the IO are connected since the I have started debugging it we had incident and we had to scrap 2 evaluation card. One was completely burnout and the other one only have a few pins that have failed.
Are the digital IO arranged as a few pins together with the over-voltage protection diode together or each pins has independent protection? Is there a voltage protection for the analog port and where is it connected? Directly to AVDD or no protection?
Kinds Regard