IQS7211E001QFR

Overview

The IQS7211E001QFR is a ProxSense capacitive touch and proximity trackpad controller in a QFN20 package. It supports up to 13 external sensor connections with self- or mutual-capacitive configurations. The device provides high-resolution coordinate outputs at report rates up to 100 Hz, tracks up to two fingers, and includes a single-finger gesture recognition engine. Operating voltage ranges from 1.71 V to 3.5 V, with an I2C interface supporting speeds up to 1 MHz. It features automatic tuning, low-power wake-up modes, and water immunity.

Feature Summary

• Integrated single-finger gesture recognition engine for intuitive user interaction
• Automatic sensor tuning and noise filtering for reliable operation under varying conditions
• Ultra-low power wake-up capabilities via dedicated sensors or trackpad activation
• Advanced display interference avoidance and water immunity features

Applications

• Fitness bands
• True Wireless Stereo (TWS) earbuds
• Game controller touch pads
• Headphones

Procurement Notes

Verify the specific ordering suffix 'QFR' corresponds to the QFN20 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design specifications align with the absolute maximum ratings and recommended operating conditions defined in the datasheet to guarantee long-term reliability.

Selection Notes

Select this component for applications requiring compact footprint and gesture support. The QFN20 package offers 13 sensor connections, suitable for 7x6 trackpad layouts. Evaluate power consumption requirements against active and low-power mode data. Consider thermal pad connection to ground for optimal performance and ESD protection during PCB layout.

Part Context

Part of the Azoteq IQ Switch ProxFusion series, designed for versatile touch and proximity sensing. The IQS7211E integrates advanced DSP for touch performance and supports various display panel types. It simplifies integration with pre-programmed settings and automated start-up capabilities, reducing production line calibration needs.

Replacement Considerations

Check for updated revisions within the IQS7211E family. Verify pin compatibility if substituting with other QFN20 variants like IQS7211E001QNR. Ensure software configuration tools are compatible with the selected package type.