Azoteq IQS7222A ProxFusion® ICs

Azoteq IQS7222A ProxFusion^® ICs offer a 1.71V to 3.5V voltage range, ±4000V electrostatic discharge, and +85°C max. temperature rating. These sensors are fully I²C compatible, and feature on-chip calculations that enable multiple application options. These highly flexible ProxFusion devices can configure up to 9 channels using external connections or internal sensors. Azoteq IQS7222A ProxFusion ICs are ideal for waterproof buttons, wear detection, SAR compliance in mobile devices, and HALL-effect dock detection.

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 sensors with additional distributed sensor pads
- Up to 9 projected capacitive touch/proximity sensors
- Up to 4 inductive sensor elements
Internal sensor option
- HALL-effect switch
Built-in basic functions
- Automatic tuning
- Noise filtering
- Differential measurements
- Debounce and hysteresis
- Dual direction trigger indication
Built-in signal processing options
- Slider output (0-255)
- Gesture functions (swipe, tap, hold)

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
1.8V to 3.5V supply voltage
Small Packages
- WLCSP18 (1.62mm x 1.62mm x 0.5mm) – interleaved 0.4mm x 0.6mm ball pitch
- QFN20 (3.0mm x 3.0mm x 0.5mm) – 0.4mm pitch

Applications

SAR compliance in mobile devices
Wear detection
Appliance user interface (slider and buttons)

Waterproof buttons (inductive)
Low power wake-up buttons/proximity
HALL-effect dock detection

Azoteq IQS7222A ProxFusion® ICs

Features

Applications

Block Diagram

husseinkey ELECTRONICS®

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