Azoteq IQS7211E Versatile Trackpad/Touchscreen Controller
Azoteq IQS7211E Versatile Trackpad/Touchscreen Controller is a capacitive touch and proximity trackpad / touchscreen controller that offers superior sensitivity, signal-to-noise ratio, and automatic tuning of electrodes. The low power proximity detection allows extreme low power operation. The IQS7211E includes a dedicated ultra-low power wake-up touch sensor or wake-up onscreen / trackpad. Other features include automatic sensor tuning for optimum sensitivity, internal voltage regulator and reference capacitor, on-chip noise filtering, detection debounce and hysteresis, and a wide range of capacitance detection. Azoteq IQS7211E Versatile Trackpad/Touchscreen Controller has high-resolution coordinate outputs, fast response with a coordinate report rate up to 100H, and tracking for one- and two-finger use. The device has 13 (QFN20) / 11 (WLCSP18) external sensor pad connections. Ideal applications include fitness bands, true wireless stereo (TWS) earbuds, game controller touchpads, and headphones.Features
- Highly flexible ProxFusion® device
- 13 (QFN20) / 11 (WLCSP18) external sensor pad connections
- Self- / mutual-capacitive sensors configuration for display wake-up
- Ultra-low power (ULP) wake-up on touch
- Dedicated wake-up touch sensor or wake-up onscreen/trackpad
- 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
- Trackpad / touchscreen
- Up to 2 fingers tracking
- High-resolution coordinate outputs
- Fast response: Coordinate report rate up to 100Hz
- Individual sensor touch
- Integrated touch size output (area and strength) for touch integrity
- Single finger gesture recognition engine
- Electrode mapping for optimal PCB layout
- Configurable coordinate resolution and orientation
- Compatible with wide range of overlay materials and thicknesses
- Compatible with multiple 1-and 2-layer sensor patterns
- Adjustable sensing frequency offset for limiting potential display interference
- No calibration required - systems automatically compensated for mechanical and temperature changes
- Water immunity features
- Supply voltage
- 1.8V (-5%) to 3.5V at 14MHz
- 2.2V minimum at 18MHz
- Design and manufacturing support
- Touch pattern layout drawing
- Full FPC layout package
- Test guide for touch pattern
- RFI immunity design support
- Design simplicity
- PC Software for debugging and obtaining optimal performance
- One-time settings programming (during MP) or pre-programmed devices
- Auto-run from programmed settings for simplified integration
- No production line calibration required
- Display cover lens thickness
- 0.5mm minimum thickness
- 2mm to 4mm maximum thickness, depending on design parameters
- Minimized display noise
- Advanced DSP for touch performance
- Display and charger interference avoidance
- Auto-adjusting digital filters
- Supports different display touch panel types
- On-cell
- Add-on touch panel
- Supporting up to 2.5" panels
- Screen resolution
- 256 per channel, example: 2048x768 (9x4 channels), 1536x1280 (7x6 channels)
- 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
Applications
- Fitness bands
- TWS earbuds
- Game controller touchpads
- Headphones
Block Diagram
Publicado: 2022-05-19
| Actualizado: 2022-05-26
