High-performance projected-capacitive touch screen controller

30-06-2015 | Microchip Technology | Semiconductors

Latest from Microchip comes news of the expansion of its human interface
solutions portfolio with the MTCH6303, an innovative, turnkey
projected-capacitive touch controller for touch pads and screens.

Touch sensors with up to 1000 nodes and diagonals of up to 10-inch are
supported. The MTCH6303 provides multi-touch coordinates as well as a
ready-made multi-finger surface gesture suite that brings modern user
interface (UI) elements, such as pinch and zoom, multi-finger scrolling, and
swipes, to any embedded design, with minimal host requirements.

The MTCH6303's advanced signal processing provides noise-avoidance
techniques and predictive tracking for 10 fingers, at scan rates of up to
250Hz with a minimum of 100Hz each for five touches. It also combines with
Microchip's MTCH652 high-voltage line driver to achieve a superior
signal-to-noise ratio (SNR) for outstanding touch performance in noisy

When combined with the MGC3130, the MTCH6303 solution is capable of
supporting 3D air gestures up to 20cm distance from the touch panel.
Microchip's MGC3130 E-field-based 3D tracking and gesture controller
includes Microchip's patented GestIC technology, allowing user input via
natural hand and finger movements in free space. This unique combination
empowers designers to create interface-control possibilities in two and
three dimensions that differentiate their products from the competition.

The advanced capabilities of the MTCH6303 create robust, ready-to-go touch
and gesture solutions for the rapid growth of human-interface applications
and requirements in: industrial equipment such as machine control panels,
HVAC controls, metering and test equipment; in home-automation products
including security control panels, thermostat and lighting controls; and in
office equipment such as printers, copiers and fax machines; among other

The MTCH6303 is supported by Microchip's new Multi-Touch Projected
Capacitive Touch Screen Development Kit (DV102013) with free, downloadable
software. The DV102013 incorporates the MTCH6303 projected-capacitive touch
controller and the MTCH652 high-voltage driver on a controller board, and
includes a transparent, 8-inch ITO touch panel for easy demonstration of the
MTCH6303's touch-controller capabilities and supporting graphical user
interface (GUI) functionality.

Microchip's free MTCH6303 GUI provides designers with complete access to the
configuration and tuning parameters. Advanced visualization windows assist
all user levels with easy-to-understand feedback, to accelerate design
integration for fast time-to-market.

Additionally, Microchip offers access to the firmware library, to enable
further customisations for maximum design flexibility and control.

The new MTCH6303 is available in 64-pin QFN and TQFP packages. The MTCH652
is offered in 28-pin QFN, SOIC and SSOP packages; and the MGC3130 in a
28-pin QFN package. All three devices are available today for sampling and
volume production, says the company.

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