" 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 APPLICATIONS ! Instrument panels ! Gaming machines ! Access systems ! Pointing devices ! Appliance controls ! Security systems ! PC Peripherals ! Backlighted buttons