MQM-31731-000

Microphones Overview

The Knowles MQM-31731-000 is a MEMS microphone module designed for audio signal capture in electronic devices. It integrates a silicon MEMS die with an integrated circuit for analog output, housed in a compact surface-mount package. The component provides high sensitivity and low noise performance suitable for voice recognition and general audio applications.

Microphones Feature Summary

• Integrates MEMS acoustic sensor with signal conditioning ASIC
• Provides analog audio output for direct processing
• Compact surface-mount form factor for space-constrained designs

Microphones Applications

• Voice command systems
• Consumer electronics audio input
• IoT device microphones

Microphones Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Knowles or authorized distributors before procurement. Confirm that the analog output interface requirements match the target application's ADC input specifications to ensure proper system integration.

Microphones Selection Notes

Select this module when an analog output MEMS microphone is required rather than digital PDM/PCM interfaces. Evaluate the mechanical mounting constraints and acoustic porting requirements of the final enclosure to ensure optimal sound pressure level transmission to the sensor diaphragm.

Microphones Part Context

This part belongs to the Knowles MEMS microphone portfolio, which includes various digital and analog output options. It serves as a complete solution replacing discrete microphone components by integrating the sensor and preamplifier into a single reliable package for mass production environments.

Microphones Replacement Considerations

Consult official substitution lists for pin-compatible alternatives within the same series. Verify acoustic performance curves and electrical characteristics against potential replacements to maintain system audio quality standards.