MMICT3904

Description：MICROPHONE MEMS DIGITAL PDM OMNI
Series：-
Mfr：TDK InvenSense
Package：Bulk

SKU:a6a537eb9063 Category: Microphones Brand: TDK InvenSense

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Product introduction

MMICT3904 is listed in the Microphones range at ChipApex. The manufacturer field lists TDK InvenSense. Its product description is MICROPHONE MEMS DIGITAL PDM OMNI. Review the specifications below when checking this part for your BOM.

Microphones specifications for MMICT3904

Description：MICROPHONE MEMS DIGITAL PDM OMNI
Series：-
Mfr：TDK InvenSense
Package：Bulk
Type：-
Output Type：-
Direction：-
Frequency Range：-
Sensitivity：-
S/N Ratio：-
Impedance：-
Voltage Range：-
Current - Supply：-
Port Location：-
Ratings：-
Termination：-
Size / Dimension：-
Height (Max)：-
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Grade：-
Qualification：-
Voltage - Rated：-

Microphones datasheet and documents for MMICT3904

MMICT3904

Microphones Overview

The MMICT3904 is a MEMS microphone manufactured by TDK InvenSense. It features an analog output and a bottom port configuration. The device operates within a supply voltage range of 1.6 V to 3.3 V, drawing a typical operating current of 200 uA. Key acoustic parameters include a sensitivity of -38 dB and a signal-to-noise ratio (SNR) of 65 dB. The frequency response spans from 100 Hz to 16 kHz, with a maximum sound pressure level of 160 dB. It supports omnidirectional pickup and functions reliably between -40°C and +85°C. The component is housed in a compact LGA-3 package measuring 3.35 mm x 2.2 mm x 0.88 mm.

Microphones Feature Summary

Integrates a MEMS sensor with an integrated analog output stage for direct interfacing.
Features a bottom port design optimized for specific acoustic enclosure requirements.
Provides omnidirectional sound pickup capability across the specified frequency range.

Microphones Applications

Voice recognition systems requiring low-noise audio capture
Mobile devices and handheld electronics
Smart home appliances with voice control interfaces

Microphones Procurement Notes

Verify the current lifecycle status before procurement, as this part may be marked as Not Recommended for New Designs (NRND). Confirm that the analog output interface aligns with the target system's input requirements, as digital alternatives exist in the product family. Ensure the LGA-3 package dimensions fit the designated PCB footprint and that the bottom port orientation matches the acoustic venting design.

Microphones Selection Notes

Select this component when an analog output is required rather than digital PDM or I2S interfaces. The 65 dB SNR and -38 dB sensitivity offer a balance suitable for general voice applications. Consider the 200 uA supply current for battery-operated designs. Verify compatibility with the host processor's ADC input range and impedance matching requirements for the analog signal path.

Microphones Part Context

This component belongs to the TDK InvenSense MEMS microphone portfolio, which includes various output types such as analog, PDM, and I2S. The MMICT3904 specifically addresses applications needing analog conversion on-chip. It shares physical form factors with other models in the series but differs in signal processing architecture. The manufacturer provides ECAD models and datasheets for integration support.

Microphones Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Check for updated revisions within the same product line or consult the manufacturer for recommended alternatives if the NRND status impacts long-term supply.