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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 ar