|
AT42QT1040 Datasheet, PDF (1/18 Pages) ATMEL Corporation – QTouch™ 4-key Sensor IC | |||
|
Features
⢠Number of Keys:
â Up to 4
⢠Discrete Outputs:
â 4 discrete outputs indicating individual key touch
⢠Technology:
â Patented spread-spectrum charge-transfer (direct mode)
⢠Electrode Design:
â Simple self-capacitance style (refer to the Touch Sensors Design Guide)
⢠Electrode Materials:
â Etched copper, silver, carbon, Indium Tin Oxide (ITO)
⢠Electrode Substrates:
â PCB, FPCB, plastic films, glass
⢠Panel Materials:
â Plastic, glass, composites, painted surfaces (low particle density metallic paints
possible)
⢠Panel Thickness:
â Up to 10 mm glass, 5 mm plastic (electrode size dependent)
⢠Key Sensitivity:
â Fixed key threshold, sensitivity adjusted via sample capacitor value
⢠Adjacent Key Suppressionâ¢
â Patented Adjacent Key Suppression⢠(AKSâ¢) technology to enable accurate key
detection
⢠Interface:
â Pin-per-key outputs, plus debug mode to observe sensor signals
⢠Moisture Tolerance:
â Good
⢠Power:
â 1.8V ~ 5.5V
⢠Package:
â 20-pin 3 x 3 mm VQFN RoHS compliant
⢠Signal Processing:
â Self-calibration, auto drift compensation, noise filtering, Adjacent Key
Suppression technology
⢠Applications:
â Mobile, consumer, white goods, toys, kiosks, POS, and so on
QTouch⢠4-key
Sensor IC
AT42QT1040
9524BâAT42â04/09
|
▷ |