AT42QT1111-AU

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:...