Capacitive Touch Interfaces

Capacitive Touch Screen Interface drivers are circuits, which are able to scan sequentially a grid of capacitive touch sensors usually recovering a display. They have fully configurable device parameters (number of used
sensors, sensors scan frequency, nominal sensor capacitance value, sensors sensitivity level, IRQ condition …). Parameter configuration is possible either from a host microcontroller through a communication port or from several configuration inputs.
The circuits have also capacity to detect the most activated sensor in applications where sensors are tightly spaced.

	Part #	Description	Document
	EM6420	Capacitive Touch Sensor Interface IC	EM6420 Fa ctsheet Touch Mod ule Build up