器件名称:
QT140-A
功能描述:
4 AND 5 KEY QTOUCH SENSOR ICs
文件大小:
718.26KB 共14页
简 介:
lQ 4 AND 5 KEY QTOUCH SENSOR ICs SSOP Vss Vss Vdd Vdd SNS1A SNS1B SNS2A SNS2B SNS3A SNS3B SNS4A SNS4B SNS5A Vss /RST OSC_I OSC_O OPT2 OPT1 SYNC OUT5 OUT4 OUT3 OUT2 OUT1 AKS OC SNS5B Vdd Vdd Vss Vss Vss SNS1A SNS1B SNS2A SNS2B SNS3A SNS3B SNS4A SNS4B SNS5A DIP /RST OSC_I OSC_O OPT2 OPT1 SYNC OUT5 OUT4 OUT3 OUT2 OUT1 AKS OC SNS5B QProx QT140 / QT150 Completely independent QT touch circuits Individual logic outputs per channel (open drain) Projects prox fields through any dielectric Only one external capacitor required per channel Sensitivity easily adjusted on a per-channel basis 100% autocal for life - no adjustments required 3~5.5V, 5mA single supply operation Toggle mode for on/off control (strap option) 10s, 60s, infinite auto-recal timeout (strap options) AKS Adjacent Key Suppression (pin option) Sync pin for multi-chip sync or line sync Less expensive per key than many mechanical switches Eval board with backlighting - p/n E160 QT150 shown - NOTE: Pinouts are not the same! APPLICATIONS PC Peripherals Backlighted buttons Appliance controls Security systems Access systems Pointing devices Instrument panels Gaming machines QT140 / QT150 charge-transfer (“QT’”) QTouch ICs are self-contained digital controllers capable of detecting near-proximity or touch on 4 or 5 electrodes. They allow electrodes to project independent sense fields through any dielectric like glass, plastic, stone, ceramic, and wood. They can also turn metal-bearing objects into intrinsic sensors, maki……
