AT42QT1110-MU

Atmel AT42QT1110-MU AT42QT1110-AU 11-key QTouch® Touch Sensor IC Features DATASHEET  Sensor Keys:  Up to 11 QTouch® channels  Data Acquisition:  Measurement of keys triggered either by a signal applied to the SYNC pin or at regular intervals timed by the AT42QT1110 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 × 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 (1.5 MHz)...