Datasheet Summary
.. lQ z Two independent charge-transfer (‘QT’) touch keys z Individual outputs per channel
- active high z Projects prox fields through any dielectric z Sensitivity easily adjusted on a per-channel basis z 100% autocal for life
- no adjustments required z 3.9V ~ 5.5V single supply operation z 10s, 60s, infinite auto-recal timeout (strap options) z Sync pin for line sync to suppress noise z Spread spectrum operation z Pin options for auto recalibration timings z Extremely low cost per key z 20-SSOP Pb-free package
SNS1A SNS1K n.c. SPEED n.c. OUT1 OUT2 VSS SYNC/SS n.c. 1 2 3 4 QT220 5 20-SSOP 6 7 8 9 10 15 14 13 12 11 16 20 19 18 17
2 KEY QTOUCH™ SENSOR IC
SNS2K/OPT1...