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Single-chip controller enables slimmer multi-touch phone form factors

Posted: 01 Nov 2010 ?? ?Print Version ?Bookmark and Share

Keywords:controller? multi-touch? capacitive?

The S-Touch Fingertip from STMicroelectronics is a single-chip capacitive touch controller for slimmer widescreen devices such as smartphones offering true multi-touch capability.

STMicroelectronics said the S-Touch FingerTip controller supports unlimited simultaneous touches and stylus operations while enhancing multi-touch actions such as pinch-to-zoom. Its patented analog IP provides high signal-to-noise-ratio performance with high scan speed that allows robust and fast touch performance.

ST S-Touch Fingertip capacitive touch controller

Among its key features are advanced noise cancellation that allows it to support the latest on-cell LCD technology without requiring a ground shielding layer between the display and the touch sensor, thereby reducing assembly costs while enhancing image quality; 8kV HBM ESD protection; ultra-low-power consumption in touch-ready mode; auto-tuning and self calibration; the industry's highest number of nodes at 288 (18x16); and a small package of either QFN 56 (7x7mm) and ultra-small flip-chip CSP 49 (3x3mm).

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