Other Parts Discussed in Thread: FDC2214
Hello,
I have a couple of questions regarding the "Input deglitch filter" setting in the EVM GUI. When setting the deglitch frequency to a value below the LC-tank frequency the frequency of the sensor is reduced from ~5Mhz to ~1.8Mhz.
Also the Idrive current needs to be increased to get to 1.2Vpk after this happens and the half-sine signal driving the sensor looks more like a full sine with pauses in between:
~ = full sine
~__~__~__~ and so on.
Something like the user in this post:
https://e2e.ti.com/support/sensor/capacitive-sensing/f/987/t/488948
Is this by design? Are there any drawbacks? Is it possible to use the FDC2214 this way, or will it break (I have no idea of the internals)? I ask this because it would be convenient for our application if I could use it with these settings.