Novel touchscreen controller enables touchscreens to function seamlessly with noisy battery chargers
February 14, 2011 // Paul Buckley
Cypress Semiconductor Corp., has unveiled a new feature for the company’s TrueTouch touchscreen controllers that enables touchscreens in handsets, cameras, GPS systems and other mobile systems to function seamlessly while connected to noisy chargers. Low-cost, third-party and after-market battery chargers emit large levels of common-mode noise that adversely affects touchscreen performance, often resulting in inaccurate touch readings or phantom touches.
Cypress’s new Charger Armor feature allows TrueTouch touchscreens to operate normally in the presence of AC noise.
The new feature, which is available in Cypress’s CY8CTMA3XX TrueTouch family, solves a common problem that mobile device manufacturers are struggling to overcome. Low cost chargers lack critical noise suppression components, and can generate tens of volts (peak to peak) across the frequency spectrum of 1 Hz to 1 MHz. The voltage spikes can go directly into the touch panel during the presence of touch, impacting touch performance. As such, many of the mobile phone vendors have worked together to create EN 62684 and EN301489, standards which regulate the noise spectrum for battery chargers. While Cypress’s TrueTouch technology alone can suppress noise at the levels of these standards, Charger Armor allows Cypress to go beyond the standards to deliver truly revolutionary charger noise immunity to the market, enabling mobile devices to operate with the lowest-cost chargers.
The Charger Armor feature is available today, and Cypress expects customers to introduce systems with Charger Armor in the first half of 2011.
For more information about the TrueTouch solution visit www.cypress.com/go/TrueTouch
Polymer solar cell boosts power generation by 15 percent
September 22, 2014
Scientists in the University of Chicago’s chemistry department, the Institute for Molecular Engineering and Argonne ...
What Apple stuffed inside iPhone 6 plus
Nuclear spins shown to control current in LED
Trillions of sensors ahead - with interesting side effects
Breaking the 'electrode barrier' promises lower-cost organic PVs
Harvesting every bite of energy
September 22, 2014
Researchers, from Sonomax-ÉTS Industrial Research Chair in In-ear Technologies (CRITIAS) at École de technologie supérieure ...
Mars Probe Looks for Atmosphere 'Lost in Space'
Sensor Hubs Aided by IEEE-2700-2014 Datasheets
Daimler to test autonomous driving in California
- Putting FPGAs to Work in Software Radio Systems Handbook
- Flexible and Low Power Driving of Solenoid Coils
- How to Protect & Monetize Android Apps
- Power Modules: The New Super Power
InterviewCEO interview: AMS' Laney on driving a sensor-driven business
Kirk Laney, CEO of Austrian mixed-signal chip and sensor company AMS, wants to leverage the opportunity that technology affords to create new markets for sensors and sensor interfaces.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Trinamic Motion Control is offering you to win one of four TMCM-1043 development kits for its highly integrated, NEMA 17-compatible TMCM-1043 stepDancer stepper motor module.
Offering designers an easy-to-use PC-based GUI that allows one-click modification of motor drive current, micro-stepping and other key parameters, the intuitive kits are custom designed and developed for...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.