09 January 2012

CES 2012: Touchscreen controllers set new standards of performance

Atmel will be demonstrating a new family of touchscreen controllers that it claims sets the highest standard of performance, at the Consumer Electronics Show (CES 2012) from January 10 to 13, Las Vegas.

The performance of the new maXTouch S Series, says Atmel, is achieved by eliminating the impact of system noise, enabling slim sensors and supporting active and passive stylus. According to the mcu specialist, the touchscreen controllers are suitable for the design of intuitive touchscreen interfaces of up to 17in diagonal for products such as smartphones, tablets, digital cameras and e-readers.

The series includes the mXT224S, a 224 node controller; mXT336S, a 336 node controller; and mXT1664S a high node density, single chip 32bit solution targeted at tablet products with touchscreens of 10.1in and above.

Atmel says a feature of the maXTouch S Series is SlimSensor Technology, which enables system designers to deliver mobile products that are thinner and lighter than was previously possible, without sacrificing immersive responsiveness, touch fidelity or battery life. The technology is a combination of hardware and firmware innovations designed to combat display noise up to 3.5V from any type of display, including ACVCOM lcds and noisier high pixel density displays. SlimSensor Technology features full hardware acceleration of noise cancelling functions and, according to Atmel, delivers industry leading noise immunity with a 2X improvement in responsiveness compared with the current generation of maXTouch devices. The technology does not require additional listening channels, synchronisation to display timing, or tuning and with it, designers can use sensor technologies including fully laminated, unshielded touch on lens sensors, display integrated on cell sensors and ultra thin film sensors. Atmel says the advanced touch sensor stacks are up to 58% slimmer than conventional counterparts.

Another maXTouch S Series feature, maXCharger Technology is a blend of analogue circuitry and algorithms designed to enable flawless touch performance with battery chargers that output up to 240V of common mode noise. The technology is said to eliminate false touches while maintaining 'industry leading' responsiveness, linearity and low jitter performance. It utilises high voltage and advanced algorithms to provide the equivalent of 14.4V touch sensor scanning on the mXT336S and the mXT224S, resulting in a 4.5X improvement in SNR in noisy conditions. The mXT1664S provides the equivalent of 24V touch sensor scanning with a corresponding SNR increase, according to Atmel, shattering previous industry records. System designers can choose to engage this high voltage scanning only when the charger is plugged into the system, as it is not needed when the system is running off the battery.

maXCharger Technology also utilises spike suppression to remove severe noise spikes before they corrupt measurements and active noise avoidance to seek out quieter operating frequencies. Atmel claims these enhancements result in a 3X increase in responsiveness compared to previous generations of maXTouch devices in the presence of severe charger noise.

Atmel says the controllers deliver additional breakthroughs for maximum touchscreen performance: Fully parallelised touch sensor scanning, enabling the industry's fastest report rates; Sensor electrode pitch that is narrower than 4.5mm in common smartphone and tablet screen sizes, for higher touch sensing and stylus tracking resolution that matches increasing display pixel density; and improved touch processing algorithms, for better finger tracking precision, improved accuracy and linearity, and more sophisticated rejection of unintended touches.

"The introduction of the maXTouch S Series represents a major milestone for Atmel and a fundamental redefinition of how touchscreen design can be accomplished," said Peter Jones, vice president of the microcontroller and touch business unit, Atmel. "Designers of industry leading touch interface products will no longer have to compromise on touchscreen performance and extreme functionality because of system noise. Freed from previous constraints, design engineers now have a technology platform with which they can unleash their creativity and integrate touch interfaces into a new breed of mobile products that will delight consumers."

maXTouch S Series devices are now sampling with lead customers. Production quantities will be available in Q1 2012.

Chris Shaw

Supporting Information


Atmel Corporation

This material is protected by Findlay Media copyright
See Terms and Conditions.
One-off usage is permitted but bulk copying is not.
For multiple copies contact the sales team.

Do you have any comments about this article?

Add your comments


Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Four IDEs for Kinetis support

Freescale has named four tools as featured integrated development environments ...

Sensor market back on track

Emerging markets such as the Internet of Things, wearable electronics and the ...

NFC added to certification

The Wi-Fi Alliance has updated one of its more popular product certification ...

LED bulb 'achieves impossible'

"It was a technical challenge to make 50 units that met a certain ...

Boosting LED performance

Energy efficiency and longevity have made LEDs the light source of choice in a ...

LEDs lighting the way ahead

A host of research projects in the established field of visual light ...

NI Trend Watch 2014

This report from National Instruments summarises the latest trends in the ...

Video wall technology

Video wall technology is changing the industrial landscape and the way we see ...

Optimising operating life

The replacement of incandescent lighting mandated by the largest countries ...

Buck LED driver

A dimmable buck LED driver, designed to reduce component count and PCB size in ...

High resolution display module

A new display from Demmel Products has introduced high definition to a smaller ...

Customised ePaper displays

Electronic Assembly's ePaper displays are designed for use in the medical, ...

Future World Symposium 2014

29th - 30th April 2014, Twickenham Stadium, London

RF & Wireless forum

9th September 2014, Manchester, UK

BEEAs 2013

9th October 2014, 8 Northumberland, London

LED lighting lamp designs

TI marketing engineer, John Perry discusses how the new TPS92411 Floating ...

Electronics Design Show 2013

Take a look at some of the highlights from the 2013 Electronics Design Show and ...

LTE measurements made easy

The MD8475A signalling tester is an all-in-one base station simulator ...

Smartwatches and Sir Clive

All the excitement about smartwatches brings to mind the Sinclair Wrist ...

You will buy a smartwatch

The announcement yesterday by Google that it is extending Android into the ...

Sony’s slide continues

Not so long ago, if you asked the legendary 'man in the street' which consumer ...

Gregg Lowe, Freescale

Freescale's new ceo tells Graham Pitcher that, while he's not 'dancing' yet, ...

Menno Treffers, WPC chairman

There are now 110 consumer electronics products that are authorised by the ...

Aurelius Wosylus, AMD

Chris Shaw discusses AMD's latest low power processors with Aurelius Wosylus.