White Papers - Cypress.com http://www.cypress.com/?app=search&searchType=advanced&keyword%3D%26rtID%3D115%26id%3D1932%26applicationID%3D0%26l%3D0 Noise Immunity of Touchscreen Devices http://www.cypress.com/?rID=75705 Dealing with noise is an important aspect of any real-world electronic system, including a touchscreen in a cell phone or tablet. While there are many sources of noise that can interfere with capacitive touch sensing, the most prominent ones originate in displays and battery chargers. This white paper explores considerations for dealing with noise issues in touchscreen design.

]]> Mon, 25 Feb 2013 07:54:05 -0600 Noise Wars: Projected Capacitance Strikes Back http://www.cypress.com/?rID=68748 Touchscreen performance in the presence of noise is one of the major obstacles facing mobile electronics device designers today. This article will discuss the two major sources of noise, display noise and charger noise. It will discuss design techniques and available solutions that can be used to overcome these challenges.

]]> Wed, 05 Sep 2012 03:07:58 -0600 Rise Above the Noise - TrueTouch Gen 4 White Paper http://www.cypress.com/?rID=61033 Wed, 28 Mar 2012 23:54:15 -0600 Cypress SONOS Technology http://www.cypress.com/?rID=2937 Tue, 12 Jul 2011 08:22:18 -0600 Cypress' CapSense Sigma-Delta Algorithm http://www.cypress.com/?rID=2934 CapSense Sigma Delta algorithm (CSD) is Cypress' latest capacitive sensing algorithm for the CY8C21x34 and CY8C24x94 PSoC(R) device family.

CSD enables the implementation of an array of capacitive sensors through switched capacitor circuitry, an analog multiplexer, digital counting, and PWM functions.

The hardware configuration works in conjunction with high level software routines from the CSD User Module found in PSoC Designer(TM) to compensate for environmental and physical sensor variations

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