In the CapTIVate technology guide is stated Class A immunity with mutual capacitance buttons is expected to work at 3 VRMS.
We would like to make a solution based on mutual capacitance buttons which has to be fully functional at 10VRMS.
Is there any experience if this is reachable.
We did some testing with the CapTIVate EVM and adding a ground plane improved the immunity from radiation.
I hope someone can share their experiences making mutual capacitance more immune or confirm 10VRMS immunity is actually reached with mutual capacitance buttons.