AT42QT2100_14 Datasheet, PDF (1/44 Pages) ATMEL Corporation – QTouch Touch Sensor IC

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