Main Features

• Highly flexible ProxFusion® device
• 2 configurable channels
  • Each channel can pair multiple sensor connections. (see Figure 1.1).
• Self/Mutual capacitive sensors
• Sensor flexibility
  • Automatic sensor tuning for optimum sensitivity
  • Internal voltage regulator
  • Reference capacitor
  • On-chip noise filtering
  • Detection debounce and hysteresis
  • Wide range of capacitance detection
• Proximity Sensing
  • High SNR for proximity sensing
  • High parasitic load capability (400pF)
• Variance detection
  • Calculate signal variance
  • Triggers based on signal variance level
  • Variance estimates user interaction level (user movement magnitude)
• Design simplicity
  • PC GUI for obtaining optimal on-chip settings
  • One-time settings programming(during MP)
• 3x GPIO’s to output status flags from any channel
• Automated system power modes for optimal response vs consumption
• I2C communication interface with IRQ/RDY(up to fast plus -1MHz)
• Standalone, event mode (RDY based), streaming mode (RDY based) or polling communication options
• Fully customizable standalone user interface due to programmable memory
• Supply Voltage 1.8V(-5%)to 3.5V
• Small packages:
  • WLCSP18 (1.62x 1.62x0.5 mm) - interleaved 0.4mm x 0.6mm ball pitch
  • QFN20 (3 x 3 x 0.5 mm) - 0.4mm pitch

Applications

• SAR-limiting proximity sensing
• Proximity Backlighting
• Presence detection