器件名称:
QT240-ISSG
功能描述:
4 KEY QTOUCH SENSOR IC
文件大小:
277.74KB 共12页
简 介:
lQ " " " " " " " " " " " " QT240-ISSG 4 KEY QTOUCH SENSOR IC Four independent charge-transfer (‘QT’) touch keys Individual outputs per channel - active high Projects prox fields through any dielectric Sensitivity easily adjusted on a per-channel basis 100% autocal for life - no adjustments required 3.9V ~ 5.5V single supply operation 10s, 60s, infinite autorecal timeout (strap options) Sync pin for line sync to suppress noise Spread spectrum operation Pin options for auto recalibration timings Extremely low cost per key 20-SSOP RoHS compliant package n.c. SNS2 SNS2K SNS1 SNS1K OUT1 OUT2 OUT3 VSS SS/SYNC 1 2 3 4 QT240 5 20-SSOP 6 7 8 9 10 15 14 13 12 11 OSC VDD /RES OUT4 n.c. 16 20 19 18 17 SNS3K SNS3 SNS4K SNS4 n.c. APPLICATIONS ! PC Peripherals ! Backlighted buttons ! Appliance controls ! Security systems ! Access systems ! Pointing devices ! Instrument panels ! Gaming machines The QT240 charge-transfer (“QT’”) QTouch IC is a self-contained digital sensor IC capable of detecting near-proximity or touch on four electrodes. It allows electrodes to project independent sense fields through any dielectric like glass, plastic, stone, ceramic, and wood. It can also turn metal-bearing objects into intrinsic sensors, making them responsive to proximity or touch. This capability coupled with its continuous self-calibration feature can lead to entirely new product concepts , adding high value to product designs. Each of the channels operate s independently of the others, and each c……
