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AN72362 - Reducing Radiated Emissions in Automotive CapSense® Applications | Cypress Semiconductor

AN72362 - Reducing Radiated Emissions in Automotive CapSense® Applications

Last Updated: 
May 03, 2017
Version: 
*B

AN72362 describes various hardware and firmware techniques that reduce radiated electromagnetic emissions in order to pass automotive and general electromagnetic compatibility (EMC) tests for capacitive touch based applications.

Introduction

Every automobile manufacturer is trying to improve the aesthetics and usability of their dashboard with intuitive human-machine interfaces (HMI). Capacitive based touch switches for infotainment is one of the latest offering by all carmakers worldwide. CapSense® (Cypress’s Capacitive Touch Technology based on PSoC) provides a flexible and cost effective solution to implement capacitive sensing, proximity detection, and capacitive touch screens.