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AT42QT1111-MU Datasheet(PDF) 1 Page - ATMEL Corporation |
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AT42QT1111-MU Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 50 page  Features • Sensor Keys: – Up to 11 QTouch™ channels • Data Acquistion: – Measurement of keys triggered either by a signal applied to the SYNC pin or at regular intervals timed by the AT42QT1110's internal clock – Keys measured sequentially for better performance, or in parallel groups for faster operation – Raw data for key touches can be read as a report over the SPI interface • Discrete Outputs: – Configurable “Detect” outputs indicating individual key touch (7-key mode) • Device Setup: – Device configuration can be stored in EEPROM • Technology: – Patented spread-spectrum charge-transfer (direct mode) • Key Outline Sizes: – 6 mm x 6 mm or larger (panel thickness dependent); widely different sizes and shapes possible, including solid or ring shapes • Key Spacings: – 7 mm center to center or more (panel thickness dependent) • 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 10 mm glass, 5 mm plastic (electrode size dependent) • Key Sensitivity: – Individually settable via simple commands over serial interface • Adjacent Key Suppression® (AKS™) – Patented AKS technology to enable accurate key detection • Interface: – Full-duplex SPI slave mode (750 KHz), “change” pin, discrete detection outputs • Moisture Tolerance Good • Power: – 1.8V ~ 5.5V • Package: – 32-pin 5 x 5 mm MLF RoHS compliant – 32-pin 7 x 7 mm TQFP RoHS compliant • Signal Processing: – Self-calibration, auto drift compensation, noise filtering, AKS technology • Applications: – Consumer and industrial applications, such as TV, media player, etc QTouch™ 11-key Sensor IC AT42QT1111-MU AT42QT1111-AU 9571A–AT42–02/10 |
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