INMP621ACEZ-R7

Microphones Overview

The INMP621ACEZ-R7 is a digital MEMS microphone manufactured by TDK InvenSense, featuring an omnidirectional polar pattern and bottom port configuration. It utilizes Pulse Density Modulation (PDM) output for direct interface with digital processors. The device operates within a voltage range of 1.62 V to 3.63 V and draws a supply current of 1.6 mA. It provides a sensitivity of -46 dB ±2 dB at 94 dB SPL and achieves a signal-to-noise ratio of 65 dB. The frequency response spans from 45 Hz to 20 kHz, supporting high-fidelity audio capture in compact electronic designs.

Microphones Feature Summary

• Digital PDM output enables direct connection to digital processors without requiring external analog-to-digital conversion
• Omnidirectional acoustic design ensures consistent sound pickup from all directions
• Bottom port structure facilitates integration into space-constrained consumer electronics

Microphones Applications

• Smart home voice assistants and IoT devices
• Mobile communication equipment
• Wearable technology audio interfaces

Microphones Procurement Notes

Verify component authenticity through authorized distribution channels to ensure quality integrity. Confirm that the specific suffix matches project requirements, as packaging variations may exist. Validate RoHS compliance status against current regulatory standards before finalizing procurement orders. Ensure storage conditions adhere to moisture sensitivity level specifications to prevent package degradation during handling.

Microphones Selection Notes

Select this component when digital audio processing is required without additional ADC hardware. The low power consumption suits battery-operated applications effectively. Verify that the operating voltage range aligns with the system's power supply architecture. Consider the physical dimensions and bottom port orientation for mechanical enclosure compatibility during the design phase.

Microphones Part Context

This component belongs to the INMP621 series of MEMS microphones produced by TDK InvenSense. The manufacturer is a subsidiary of TDK Corporation specializing in sensor solutions. This series targets consumer electronics markets requiring reliable digital audio input capabilities. The product represents part of a broader portfolio including various motion and audio sensors designed for modern connected devices.

Microphones Replacement Considerations

INMP621ACEZ-R0 serves as a verified alternative variant within the same product family.