IQS7211E001QNR

Overview

The IQS7211E001QNR is a capacitive touch and proximity trackpad controller from the IQ Switch ProxSense series, manufactured by Azoteq. It features 13 external sensor pad connections in a QFN20 package, supporting self- or mutual-capacitive configurations for display wake-up. The device supports up to two fingers tracking with high-resolution coordinate outputs at report rates up to 100 Hz. It includes an integrated single-finger gesture recognition engine and automatic tuning for optimum sensitivity. Operating conditions include a supply voltage of 1.71V to 3.5V and an operating temperature range of -40°C to 85°C.

Feature Summary

• Supports flexible sensor configurations including self- and mutual-capacitive modes for display wake-up.
• Features automatic sensor tuning and on-chip noise filtering for optimized sensitivity without calibration.
• Integrates a single-finger gesture recognition engine alongside dual-finger tracking capabilities.
• Provides ultra-low power wake-up options via dedicated sensors or screen/trackpad activation.

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and pre-programmed settings. Check for RoHS compliance documentation and ensure storage conditions adhere to moisture sensitivity level requirements before assembly.

Selection Notes

Select this model when a compact QFN20 footprint is required for trackpad applications. Ensure the design accommodates the 13 available sensor connections and supports the necessary I2C interface speeds. Consider the power consumption profiles if battery-operated devices are targeted, utilizing the low-power wake-up features.

Part Context

This component belongs to the IQS7211E series within Azoteq's ProxSense portfolio. It is designed for versatile trackpad implementations requiring proximity detection and gesture support. The QNR suffix indicates the QFN20 package variant, distinguishing it from WLCSP18 options in the same family.

Replacement Considerations

Direct substitutes within the same package and pinout should be verified against the official datasheet. Cross-referencing electrical characteristics and software compatibility is essential when considering alternative capacitive touch controllers from other manufacturers.