ICS-40181

Microphones Overview

The ICS-40181 is an analog MEMS microphone manufactured by TDK InvenSense. It features an omnidirectional acoustic port and provides a sensitivity of -38 dB relative to 1 V/Pa at 1 kHz. The device operates with low power consumption, making it suitable for battery-powered applications requiring high-fidelity audio capture.

Microphones Feature Summary

• Omnidirectional acoustic design for consistent sound pickup from all directions
• Analog output interface compatible with standard audio processing circuits
• Low noise performance optimized for clear voice recognition

Microphones Applications

• Voice-controlled smart home devices
• Portable consumer electronics
• Hands-free communication systems

Microphones Procurement Notes

Verify the specific manufacturer source and authenticity upon procurement. Confirm that the component matches the exact package dimensions and pinout requirements of your design. Ensure compliance with relevant environmental standards before final integration into production units.

Microphones Selection Notes

Select this component when an analog output is required rather than digital PDM or I2S interfaces. It is appropriate for designs prioritizing simplicity in signal chain architecture over digital integration capabilities. Evaluate system noise floors to ensure compatibility with the microphone's inherent noise characteristics.

Microphones Part Context

This part belongs to the InvenSense portfolio, now under TDK, which specializes in MEMS sensor solutions. The company focuses on inertial, audio, and positioning technologies for mobile, industrial, and automotive markets. This microphone supports applications demanding reliable acoustic sensing.

Microphones Replacement Considerations

Consult official TDK InvenSense documentation for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' analog MEMS microphones without rigorous electrical and mechanical validation.