Hi Support,
referring to our SLAA363A, can you kindly confirm me how many GPIOs are required to implement 3 capacitive keys with both RO method and Resistor Based method?
Is it possible to receive PCB recommendations for Capacitive Keys implementation? In particular two questions:
- Is it mandatory to have solder protecting sensible area?
- Bottom ground plane and Top guard plane need to be connected or do they need to be "independent"? If yes, is it correct to connect to ground the Bottom one?
Thanks and regards,
Alberto