NEWS - Cypress debuts "ghost-free" smartphone multi-touch sensor/controllers - Embedded.com

NEWS – Cypress debuts “ghost-free” smartphone multi-touch sensor/controllers

San Jose, Ca. – Cypress Semiconductor has just introduced new series of fully-integrated TrueTouch touchscreen controllers, the TMA300 family, based on the use of its PSoC programmable system-on-chip microcontroller architecture.

According to Norm Taffe, executive vice president of the Consumer and Computation Division at Cypress, the new devices are targeted at next-generation differentiated touchscreen-based user interfaces for applications in mobile handsets, portable media players, netbooks, notebooks, printers, digital still cameras, GPS systems and more.

He said the TMA300 family's integrated analog sensing engine is designed for speedy and accurate touchscreen user experience that allows tracking of multiple fingers simultaneously with precise x-y locations and without user delays or problems with erroneous “ghost” responses.

The family supports traditional gestures such as tap, double-tap, pan, pinch, scroll, and rotate, and also provides developers a unique platform to create custom gestures without being constrained to two-finger touch.

Cypress offers the TMA300 family in a tiny chip-scale package (CSP) as well as in a thin 0.6mm QFN package. These package options give end customers a range of options for mounting the controllers on flex modules and/or directly on a printed circuit board with minimal area impact. The new devices also support input voltages from 1.7V to 3.6V, enabling very low power consumption for battery operated devices.

Taffe said the TMA300 family will support a range of new features including low-cost 3mm passive stylus input, proximity detection that enables ear/face/palm rejection, water proofing and a “hover” feature that meets the touch requirements for operating systems such as Symbian, Android, Windows Mobile and Windows7.

In addition, the new devices also feature improved noise immunity with patented capacitive sensing technology that enables flawless operation in noisy RF and LCD environments.

The new multi-touch all-point TrueTouch family includes the CY8CTMA300E device with 32 Kbytes of Flash and the CY8CTMA301E device with 16 Kbytes of Flash. Both products are offered in 36- and 48-pin QFN packages, and the CY8CTMA300E is also offered in a tiny 49-pin chip-scale package.

The devices have been sampling since early 2009. Development kits are available to select customers through Cypress sales. To learn more, go to www.cypress.com.

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