MMICT390200012

Microphones Overview

The MMICT390200012 is a digital MEMS microphone manufactured by TDK InvenSense, featuring a bottom port and PDM output. It operates within a voltage range of 1.65 V to 3.63 V with a supply current of 650 µA. The device provides a sensitivity of -32 dB ±1 dB at 94 dB SPL and achieves a signal-to-noise ratio of 64 dBA. Its physical dimensions are 3.50 mm in length, 2.65 mm in width, and 0.98 mm in height. The component supports an operating temperature range from -40°C to +85°C.

Microphones Feature Summary

• Bottom port acoustic design for omnidirectional sound capture
• Digital Pulse Density Modulation (PDM) output interface
• Low-power operation suitable for always-on audio sensing

Microphones Applications

• Voice command interfaces in consumer electronics
• Acoustic event detection systems
• IoT devices requiring low-power audio input

Microphones Procurement Notes

Verify the part status carefully as official documentation indicates this specific model may be obsolete or end-of-life. Confirm availability through authorized distributors and check for product change notifications regarding obsolescence before finalizing procurement plans.

Microphones Selection Notes

Select this component when a compact, low-power digital microphone with PDM output is required. Ensure the system architecture supports PDM signals and that the 650 µA supply current aligns with power budget constraints. Verify compatibility with the 1.65 V to 3.63 V operating voltage range.

Microphones Part Context

This microphone belongs to the TDK SmartSound family, designed for high-performance audio sensing. It utilizes MEMS technology combined with CMOS circuitry to deliver studio-quality digital capture. The series emphasizes ultra-low power consumption and advanced features for edge AI and context-aware applications.

Microphones Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer documentation for potential alternatives if this unit is discontinued.