INMP522ACEZ-R7

Microphones Overview

The INMP522ACEZ-R7 is an omnidirectional MEMS microphone manufactured by TDK InvenSense. It features a bottom port and analog output, designed for low-noise audio capture. Key electrical parameters include a sensitivity of -38 dB with a tolerance of 2 dB at 94 dB SPL, and a signal-to-noise ratio (SNR) of 65 dB. The device operates within a frequency range of 100 Hz to 16 kHz. It functions on a supply voltage between 1.6 V and 3.3 V, drawing a typical operating current of 200 µA. The component supports a maximum sound pressure level of 160 dB and operates within a temperature range of -40°C to +85°C.

Microphones Feature Summary

• Provides high-fidelity analog audio output with low noise characteristics suitable for voice recognition.
• Utilizes a bottom-port acoustic design to facilitate integration into compact electronic enclosures.
• Features an omnidirectional pickup pattern for consistent sound capture from all angles.

Microphones Applications

• Smart speakers and voice-activated hubs
• Mobile devices and smartphones
• Wearable technology and hearables

Microphones Procurement Notes

Verify the specific suffix and revision status before procurement, as manufacturing updates may occur. Confirm that the analog output interface matches the target application's input requirements. Ensure the bottom-port orientation aligns with the mechanical design constraints of the final assembly. Check for any recent product change notices or end-of-life announcements from TDK InvenSense regarding this specific part number.

Microphones Selection Notes

Select this component when a low-power, analog-output MEMS microphone is required for voice-centric applications. It is suitable for designs needing a balance between size and acoustic performance. Consider the 1.6 V minimum supply voltage for compatibility with battery-powered systems. Evaluate the 65 dB SNR against the ambient noise environment of the intended deployment area.

Microphones Part Context

This component belongs to the INMP522 series of MEMS microphones from TDK InvenSense. The series is engineered for consumer electronics requiring reliable audio input. TDK InvenSense is a leading provider of sensor solutions, integrating motion and audio sensing technologies. This specific model represents a standard offering in their portfolio for general-purpose voice capture.

Microphones Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative models from other manufacturers.