IQS323001DNR

Overview

The IQS323001DNR is a ProxFusion sensor fusion controller from Azoteq, packaged in a DFN-12 (3 mm x 3 mm) format. It supports three external sensor pad connections configured for self-capacitive, mutual-capacitive, or inductive sensing modes. The device operates on a supply voltage range of 1.71 V to 3.5 V and features an I2C interface with fast-plus speeds up to 1 MHz. It includes built-in automatic tuning, noise filtering, and gesture recognition capabilities.

Feature Summary

• Supports flexible channel configurations including self-capacitive buttons, mutual capacitive sensors, and inductive coils.
• Integrates advanced signal processing such as automatic tuning, noise filtering, and differential measurements.
• Provides multiple user interfaces including touch, proximity, slider output, and gesture recognition.
• Features distributed ultra-low power modes optimized for rapid wake-up and extended battery life.

Applications

• TWS earphones
• Wear detection pairs
• Waterproof inductive buttons
• Low power wake-up buttons and proximity sensors
• Watches and fitness bands

Procurement Notes

Verify the specific ordering suffix 'DNR' against the manufacturer's current datasheet to confirm package type and UI configuration. Check for any recent product discontinuation notifications or lifecycle status updates prior to finalizing procurement plans.

Selection Notes

Select this component when a compact DFN-12 package is required for multi-mode sensing applications. Ensure the design accommodates the 1.71 V to 3.5 V supply range and utilizes the I2C interface for communication with the host microcontroller.

Part Context

This part belongs to the IQS323 series within the IQ Switch ProxFusion family. It is designed for single and dual-channel sensing requirements, offering a balance of low power consumption and high flexibility for various consumer electronics applications.

Replacement Considerations

Consult the official datasheet for confirmed substitute part numbers. Verify that any replacement maintains the DFN-12 package dimensions and compatible electrical characteristics.