IMP34DT05TR

Microphones Overview

The IMP34DT05TR is an ultra-compact, low-power, omnidirectional digital MEMS microphone manufactured by STMicroelectronics. It integrates a capacitive sensing element with an IC interface to provide a digital signal in PDM format. The device features a 64 dB signal-to-noise ratio and -26 dBFS sensitivity. It operates on a single supply voltage of 1.8 V with a current consumption of 650 µA. The frequency range spans from 100 Hz to 10 kHz. The component utilizes an HCLGA package with top-port design and EMI shielding, ensuring SMD compliance. It is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

Microphones Feature Summary

• Omnidirectional digital MEMS microphone with integrated capacitive sensing element and CMOS IC interface
• Outputs digital audio data in Pulse Density Modulation (PDM) format via dedicated CLK and DATA pins
• Features EMI-shielded, SMD-compliant HCLGA package with top-port acoustic access
• Designed for industrial applications with extended operating temperature range

Microphones Applications

• Industrial audio sensors
• Voice recognition systems
• Network telephony devices
• Portable media players

Microphones Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging configuration. Confirm the part status as Not Recommended for New Designs (NRND) or End-of-Life if applicable to current procurement cycles. Ensure compatibility with existing PCB footprints for the HCLGA package. Check for any updated replacement recommendations from STMicroelectronics before finalizing orders.

Microphones Selection Notes

Select this component for applications requiring a digital output interface to simplify analog front-end design. The PDM output eliminates the need for external ADCs and reduces electromagnetic interference susceptibility. Consider the 64 dB SNR and -26 dBFS sensitivity for voice-centric applications. Verify that the host processor supports PDM clock frequencies up to 3.2 MHz for proper data acquisition.

Microphones Part Context

The IMP34DT05TR belongs to the MP34DT series of digital MEMS microphones from STMicroelectronics. This series is characterized by its ultra-compact form factor and low power consumption. The IMP34DT05 variant is specifically targeted at industrial applications, distinguishing it from consumer-focused counterparts. It shares architectural similarities with other members like the MP34DT05-A but may have different qualification standards or availability statuses.

Microphones Replacement Considerations

MP34DT05TR-A