QST108

www.DataSheet4U.com QST108 Capacitive touch sensor device 8 keys with individual key state outputs or I2C interface Not For New Design Features ■ ■ ■ ■ ■ ■ ■ ■ ■ Patented charge-transfer design Up to 8 independent QTouch™ keys supported Individual key state outputs or I2C interface Fully “debounced” results Patented AKS™ Adjacent Key Suppression Self-calibration and auto drift compensation Spread-spectrum bursts to reduce EMI Up to 5 general-purpose outputs ECOPACK® (RoHS compliant) package LQFP32 (7x7 mm) Description The QST108 is the ideal solution for the design of capacitive touch sensing user interfaces. Touch-sensitive controls are increasingly replacing electromechanical switches in home appliances, consumer and mobile electronics, and in computers and peripherals. Capacitive touch controls allow designers to create stylish, functional, and economical designs which are highly valued by consumers, often at lower cost than the electromechanical solutions they replace. The QST108 QTouch™ sensor IC is a pure digital solution based on Quantum's patented chargetransfer (QProx™) capacitive technology. QTouch™ and QProx™ are trademarks of the Quantum Research Group. Applications This device specifically targets human interfaces and front panels for a wide range of applications such as PC peripherals, home entertainment systems, gaming devices, lighting and appliance controls, remote controls, etc. QST devices are designed to replace mechanical switching/control devices an...