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AN48430 - CapSense® Express™ - Noise Filtering Methods | Cypress Semiconductor

AN48430 - CapSense® Express™ - Noise Filtering Methods

Last Updated: 
Feb 22, 2016
Version: 
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This is an Obsolete Application Note
The document AN48430 - CapSense® Express™ - Noise Filtering Methods has been marked as obsolete. The obsolete version of this application note is still available with the below description but may not be complete or valid any longer. If you have any questions or require support in regards to the below application note content, please click here and create a technical support case.
CapSense® noise filtering helps to make capacitive sensing more robust. AN48430 describes the different filtering mechanisms implemented in CapSense Express™ devices.
Introduction

CapSense® Express™ supports a maximum of 10 GPIOs. These GPIOs are configurable as capacitive sensing inputs, output with LED driving capabilities, interrupt output, wakeup on interrupt input, and other digital IO functionalities. The CapSense Express device supports I2C™ serial communication interface in slave mode.