MP34DT01TR

Microphones Overview

The MP34DT01TR is an omnidirectional digital MEMS microphone manufactured by STMicroelectronics. It features a capacitive sensing element and a CMOS IC interface that outputs PDM signals. The device operates on a single supply voltage ranging from 1.6 V to 3.6 V with a typical current consumption of 650 µA. It provides a sensitivity of -26 dBFS ±3 dB at 94 dB SPL, an acoustic overload point of 120 dBSPL, and a signal-to-noise ratio of 61 dB. The frequency response spans 20 Hz to 20 kHz. The component is housed in an ultra-compact HCLGA package with top-port design and EMI shielding.

Microphones Feature Summary

• Omnidirectional acoustic sensitivity for uniform sound capture
• Digital PDM output interface for direct connection to processors
• EMI-shielded HCLGA package for robust performance
• Low power consumption suitable for battery-operated devices

Microphones Applications

• Voice recognition systems
• Smart home audio devices
• Mobile communication handsets
• Audio recording equipment

Microphones Procurement Notes

Verify the specific suffix (e.g., TR) matches the required tape-and-reel packaging configuration. Confirm the revision level against the latest datasheet as this component may be obsolete or subject to replacement. Ensure compatibility with the target system's digital audio interface protocols before finalizing procurement decisions.

Microphones Selection Notes

Select this component when a compact, low-power digital microphone with omnidirectional pickup is required. Consider the HCLGA package dimensions for PCB layout constraints. Verify that the host processor supports PDM input interfaces. Evaluate the 61 dB SNR and 120 dBSPL AOP against the specific acoustic environment requirements of the application.

Microphones Part Context

This part belongs to the MP34DT series of digital MEMS microphones from STMicroelectronics. These sensors utilize silicon micromachining for the sensing element and CMOS processes for the interface circuitry. The series is designed for high-performance audio applications requiring small form factors and digital integration.

Microphones Replacement Considerations

Public documentation indicates the MP34DT05-A as a recommended substitute for the obsolete MP34DT01-M variant.