INMP521ACEZ-R0

Microphones Overview

The INMP521ACEZ-R0 is a low-noise MEMS microphone featuring a bottom port and PDM digital output. It operates within a voltage range of 1.6 V to 3.3 V with a supply current of 1.2 mA. The device provides a sensitivity of -26 dB and a signal-to-noise ratio of 65 dB. Its frequency response spans from 100 Hz to 16 kHz, supporting an acoustic overload point of 124 dB SPL. The component is housed in a compact LGA-3 package measuring 3.35 mm by 2.2 mm by 1 mm.

Microphones Feature Summary

• Integrates a PDM digital interface for direct connection to processors without requiring external analog-to-digital conversion.

Microphones Applications

• Mobile devices
• Wearable electronics
• Smart home appliances

Microphones Procurement Notes

Verify the obsolete lifecycle status before integration into new designs. Confirm that the specific revision matches project requirements due to potential manufacturing changes associated with end-of-life components. Ensure compatibility with existing PCB footprints and supply chain sources for this discontinued part number.

Microphones Selection Notes

Select this component when a digital PDM output is required to simplify system architecture. The low noise profile suits applications demanding high audio fidelity. Verify that the operating voltage range aligns with the target system's power rails and that the physical dimensions fit the available board space constraints.

Microphones Part Context

This microphone belongs to the INMP series of MEMS audio sensors manufactured by TDK InvenSense. The series includes various models with different output types and performance characteristics. This specific model emphasizes digital connectivity and low power consumption for portable consumer electronics.

Microphones Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.