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Atmel launches single-chip controller

Posted: 06 May 2013     Print Version  Bookmark and Share

Keywords:Atmel  touchscreen controller  maXTouch T Series  mXT2952T  handset 

Atmel Corp. has released what it says is its next-generation family of controllers supporting touchscreens up to 23-inch for applications that include handsets, tablets, Ultrabooks, notebooks and all-in-one computers.

The first device in the maXTouch T Series is the mXT2952T, which according to the company is the world's first ultra-low power single-chip device that supports Windows 8-certified touchscreens up to 15.6-inch and optimised to support touchscreen cover glass as thin as 0.4mm.

The T Series claims to deliver a revolutionary adaptive-sensing architecture featuring both mutual and self-capacitance to optimise performance. The maXTouch T Series automatically selects the best sensing architecture, seamlessly switching to enable higher performance and lower power consumption. Mutual capacitance enables true multi-touch tracking while self capacitance offers benefits including idle power consumption, moisture immunity, glove tracking and hover capability that detects a finger or an object not in contact with the screen.

The maXTouch T Series claims to enhance noise immunity with an industry-first capacitive touch dual analog and digital filtering architecture to deliver the best signal-to-noise (SNR) ratio and power consumption. The latest features in the maXTouch T Series deliver improved responsiveness and a more intuitive user interface with additions such as hover that allow users to pre-select icons, letters, links and other images without physically touching the screen, indicated the company.

With the increasing popularity of active stylus on touchscreens, the maXTouch T Series natively supports Atmel’s maXStylus, a solution that requires no additional sensor layer to enable thinner stack-ups and lower overall BOM. The award-winning maXStylus offers a Window 8-compatible solution with better touch performance, lower power consumption and lower overall system cost than other capacitive active stylus solutions on the market today, noted Atmel.

To better support Ultrabook and notebook touch sensors, the mXT2952T has specific circuitry to take advantage of indium tin oxide (ITO) alternative sensor materials such as Atmel's XSense flexible touch sensor. This allows system designers to build more innovative designs with faster operation, lower power, borderless and even flexible touchscreens.

The maXTouch T Series integrates Atmel's proprietary maXFusion sensor hub management technology that enables designers to manage both the touch interface and all the sensor intelligence in a single chip.

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