IQS7222A
The IQS7222A ProxFusion® IC is a sensor fusion device for applications that require multiple sensing capabilities from a single sensor IC. The sensor is fully I2C compatible and on-chip calculations enable multiple application options. Various UIs from gestures to power mode switching allows the IC to respond effectively in the intended application with ultra-low power consumption.
Main Features
- Highly flexible ProxFusion® device
- 12 sensor pad connections (QFN-20) / 10 sensor pad connections (WLCSP-18)
- Configure up to 9 Channels using the external connections or internal sensor
- External sensor options:
- Up to 8 self capacitive touch / proximity sensing channels
- Up to 9 projected capacitive touch / proximity sensing channels
- Up to 4 inductive sensing channels
- Internal sensor option:
- Hall-effect switch
- Built-in basic functions:
- Automatic tuning
- Noise filtering
- Differential measurements (reference channels)
- Debounce & hysteresis
- Dual direction trigger indication
- Built-in Signal processing options:
- Slider output (0-255)
- Wheel output (0-255)
- Gesture functions (swipe, tap, hold)
- Movement detection
- Design simplicity
- PC Software for debugging and obtaining optimal settings and performance
- One-time programmable settings for custom power-on IC configuration
- Auto-run from programmed settings for simplified integration
- Automated system power modes for optimal response vs consumption
- I2C communication interface with IRQ/RDY(up to fast plus -1MHz)
- Event and streaming modes
- Customizable user interface due to programmable memory
- Supply Voltage 1.8V(-5%)to 3.5V
- Small packages
- WLCSP18 (1.62 x 1.62 x 0.5 mm) - interleaved 0.4mm x 0.6mm ball pitch
- QFN20 (3 x 3 x 0.5 mm) - 0.4mm pitch
Applications
- SAR compliance in mobile devices
- Wear detection
- Multiple slider, wheel & button designs
- Waterproof inductive buttons
- Low power wake-up buttons / proximity
- Hall-effect dock detection