QT1101 - 10 KEY QTOUCH SENSOR IC
www.DataSheet4U.com lQ " Patented charge-transfer (‘QT’) design " Ten independent QT sensing fields (keys) " 2.8V ~ 5.5V single supply operation " 40µA current typ @ 3V in 360ms LP mode " 100% autocal for life - no adjustments required " Serial one or two wire interface with auto baud rate " Fully debounced results " Patented AKS™ Adjacent Key Suppression " Spread spectrum bursts for superior noise rejection " Sync pin for excellent LF noise rejection " ‘Fast mode’ for use in slider type applic
QT1101 Features
* which provide for reliable, trouble-free operation over the life of the product. Burst operation: The device operates in ‘burst mode’. Each key is acquired using a burst of charge-transfer sensing pulses whose count varies depending on the value of the reference capacitor Cs and the load capacitance
