AT42QT1012-MAH 用户编程技术手册 - Microchip（微芯）

9543E–AT42–05/2013

Features

 Number of Keys:

 One, toggle mode (touch-on / touch-off), plus programmable auto-off delay

and external cancel

 Configurable as either a single key or a proximity sensor

 Technology:

 Patented spread-s

6 mm x 6 mm or larger (panel thickness dependent); widely different sizes and

 Etched copper, silver, carbon, Indium Tin Oxide (ITO)

 Electrode substrates:

 PCB, FPCB, plastic films, glass

 Panel materials:

 Plastic, glass, composites, painted surfaces (low particle density metallic

paints possible)

 Panel thickness:

 Up to 12 mm glass, 6 mm plastic (electrode size and Cs dependent)

 Key sensitivity:

 Settable via external capacitor (Cs)

 Package:

 6-pin SOT23-6 (3 x 3 mm) RoHS compliant

 8-pin UDFN/USON (2 x 2 mm) RoHS compliant

 Signal processing:

 Self-calibration, auto drift compensation, noise filtering

Atmel AT42QT1012

®