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AT42QT2100

ATMEL
Part Number AT42QT2100
Manufacturer ATMEL
Description QTouch Touch Sensor
Published Apr 20, 2015
Detailed Description Atmel AT42QT2100 QTouch Touch Sensor IC DATASHEET Features • Number of QTouch® Keys: – 0 to 7, one slider or one wheel •...
Datasheet PDF File AT42QT2100 PDF File

AT42QT2100
AT42QT2100

Overview
Atmel AT42QT2100 QTouch Touch Sensor IC DATASHEET Features • Number of QTouch® Keys: – 0 to 7, one slider or one wheel • Technology: – Patented spread-spectrum charge-transfer • Key Outline Sizes: – 5 mm x 5 mm or larger (panel thickness dependent); widely different sizes and shapes possible • Key Spacing: – 6 mm or wider, center to center (panel thickness, human factors dependent) • Key Design: – Single solid or ring shaped electrodes; wide variety of possible layouts • Wheel Size: – Typically 30 – 50 mm diameter, resistively interpolated wheel up to 80 mm diameter, typical width 12 mm • Slider Size: – Typically 50 – 100 mm length, typical width 12 mm • Slider/Wheel Electrode Design: – Choice of spatially interpolated (resistorless) or resistively interpolated design – Slider can be an arc or other irregular shape • Layers Required: – One layer substrate; electrodes and components can be on same side • Substrates: – FR-4, low cost CEM-1 or FR-2 PCB materials; polyamide FPCB; PET films, glass • Electrode Materials: – Copper, silver, carbon, ITO, virtually anything electrically conductive • Panel materials: – Plastic, glass, composites, painted surfaces (nonconductive paints) • Adjacent Metal: – Compatible with grounded metal immediately next to keys • Panel Thickness: – For keys, up to 15 mm glass, 10 mm plastic (key size dependent) – For slider/wheel, up to 4 mm glass, 3 mm plastic • Key Sensitivity: – Adjustable via change in sampling capacitor (Cs) value 9554E–AT42–01/13 • Interface: – SPI @ 750 kHz, CHANGE and DRDY status indicator pins • Moisture Tolerance: – Increased moisture tolerance based on hardware design and firmware tuning • Power: – 2.
0 V to 5.
5 V • Signal Processing: – Self-calibration, autodrift compensation, noise filtering, patented Adjacent Key Suppression® (AKS®) • Package: – 32-pin 5 x 5 mm MLF RoHS compliant – 32-pin 7 x 7 mm TQFP RoHS compliant • Applications: – Portable devices, domestic appliances and A/V equipment, PC peripherals, office ...


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