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Capacitive Touch Sensing Solutions Slide 20

Other registers are those that allow the set up the filters. There are two kinds of filters. The primary filter operation is based on integration time and the strength threshold. The integration time filter sets the number of samples that are going to be collected before the controller decides whether there was a touch or not. The strength threshold sets the minimum number of readings that must exceed the reference plus the TVR to have a touch considered as such.

PTM Published on: 2011-12-12