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Number of Keys:

? One – configurable as either a single key or a proximity sensor

Technology:

? Patented spread-spectrum charge-transfer (direct mode)

Key outline sizes:

? 6 mm × 6 mm or larger (panel thickness dependent); widely different sizes and shapes possible

Electrode design:

? Solid or ring electrode shapes

PCB Layers required:

? One

Electrode materials:

? 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 capacitor (Cs)

Interface:

? Digital output, active high

Moisture tolerance:

? Increased moisture tolerance based on hardware design and firmware tuning

Operating Voltage:

? 1.8 V – 5.5 V; 17 μA at 1.8 V typical

Package:

? 6-pin SOT23-6 RoHS compliant

? 8-pin UDFN/USON RoHS compliant

Signal processing:

? Self-calibration, auto drift compensation, noise filtering

? Infinite max on-duration

Applications:

? Control panels, consumer appliances, proximity sensor applications, toys,lighting controls, mechanical switch or button,

Patents:

? QTouch?(patented charge-transfer method)

? HeartBeat (monitors health of device)