New Cypress TrueTouch™ Feature Enables Touchscreens to Function Seamlessly with Extremely Noisy Battery Chargers
February 14 2011 - 9:00AM
Business Wire
Cypress Semiconductor Corp. (NASDAQ:CY) today unveiled a
breakthrough feature for its 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 extreme AC noise.
Cypress TrueTouch Charger Armor(TM) Noise
Reduction Technology (Photo: Business Wire)
The new feature, which is available in Cypress’s CY8CTMA3XX
TrueTouch family, is unique in the industry, and 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 1Hz to 1MHz. These voltage spikes can go
directly into the touch panel during the presence of touch,
severely 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.
“Many of our customers struggle to overcome charger noise,” said
Dhwani Vyas, vice president of the User Interface Business Unit at
Cypress. “They are pleased to see an easy-to-implement,
cost-effective solution to this problem. The flexibility of the
PSoC-based TrueTouch architecture enables us to goes beyond simple
frequency hopping and hardware filtering to address a wider range
of noise issues than other touchscreen controllers. This is yet
another example of Cypress’s leadership in providing innovative
touchscreen solutions to problems such as LCD noise rejection,
stylus support, water rejection, hover detection and others.”
Availability
The Charger Armor feature is available today, and Cypress
expects customers to introduce systems with Charger Armor in the
first half of 2011. A high-resolution photo depicting the feature
is available at http://www.cypress.com/go/ChargerArmorPhoto.
About TrueTouch
The flexible TrueTouch solution allows customers to rapidly
develop leading-edge solutions without having to buy turnkey
modules. They have a choice of using touch sensors (glass or film)
and LCDs from preferred partners, and can develop innovative
mechanical designs ranging from flat to curved surfaces of varying
thickness. In addition, TrueTouch devices offer Cypress’s legendary
noise immunity with patented capacitive sensing technology that
enables flawless operation in noisy RF and LCD environments.
The next-generation high performance TMA300 multi-touch
all-point family provides best-in-class scan times for true
multifinger touch and very high signal-to-noise ratio of more than
80:1 RMS, low power consumption (less that 1.3 mA low-power state
current), best-in-class water rejection and wet-finger tracking,
and more. Additional information about the TrueTouch solution is
available at www.cypress.com/go/TrueTouch.
About Cypress
Cypress delivers high-performance, mixed-signal, programmable
solutions that provide customers with rapid time-to-market and
exceptional system value. Cypress offerings include the flagship
PSoC® programmable system-on-chip families and derivatives such as
PowerPSoC® solutions for high-voltage and LED lighting
applications, CapSense® touch sensing and TrueTouch™ solutions for
touchscreens. Cypress is the world leader in USB controllers,
including the high-performance West Bridge® solution that enhances
connectivity and performance in multimedia handsets. Cypress is
also a leader in high-performance memories and programmable timing
devices. Cypress serves numerous markets including consumer, mobile
handsets, computation, data communications, automotive, industrial
and military. Cypress trades on the NASDAQ Global Select Market
under the ticker symbol CY. Visit Cypress online at
www.cypress.com.
Cypress, the Cypress logo, PSoC, PowerPSoC, CapSense and West
Bridge are registered trademarks and TrueTouch and Charger Armor
are trademarks of Cypress Semiconductor Corp. All other trademarks
are property of their owners.
Photos/Multimedia Gallery Available:
http://www.businesswire.com/cgi-bin/mmg.cgi?eid=6609184&lang=en
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