Touch-Sensing IC

March 22, 2007
The QT1106 is a touch-sensing and control IC giving the functions of a touch slider or wheel with seven additional keys.

The device detects a single rapid touch anywhere along the sense elements, or tracks a finger moving along the wheel or slider surface in real time. In both instances, it detects absolute position. The chip can also interface with seven additional touch keys, which can be independently tuned for sensitivity. Target applications include mobile phones, remote controls, small kitchen appliances, home audio, portable media players (including MP3 players) and lighting controls. Electrodes can be any conductive material, which projects sense fields through any dielectric, most commonly plastic or glass. An approaching finger causes a change in the sense field, registering a touch event. Unlike traditional capacitive touch sensors, QT sensors feature automatic self-calibration on power-up. This eliminates long-term drift problems from buildup of contaminants on the touch surface or changing environmental conditions. A low-power mode lets designers optimize the trade-off between response time and power consumption. The chip uses spread-spectrum burst technology to provide better than 20 V/m noise rejection and minimize EMI. It comes in a RoHS-compliant, 32-QFN package and operates from a single 2.8-5-V supply.

Saelig Co.,
1160-D2 Pittsford-Victor Rd., Pittsford, NY 14534,
(888)-7SAELIG,
saelig.com

 

 

Sponsored Recommendations

March 31, 2025
Unlike passive products - made of simple carbon springs - the bionic prostheses developed by Revival Bionics are propulsive, equipped with a motor and an artificial Achilles tendon...
March 31, 2025
Electric drives are a key technology for the performance of machines, robots, and power tools. Download this guide for an introduction to high-quality mechatronic drive systems...
March 31, 2025
Discover the world of maxon drive technology: motors, gearheads, sensors, controllers, and accessories. Configure your drive system online, including all relevant product and ...
March 31, 2025
Share current page XSun designs and manufactures a drone that is both energy-independent and can make its own decisions, for fully-automated missions. The company needed reliable...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!