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MEMS audio sensor omnidirectional stereo digital microphone, 64 dB SNR, -26 dBFS sensitivity, top-port

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Product overview


The MP34DT04 is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface.

The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process dedicated to produce audio sensors.

The IC interface is manufactured using a CMOS process that allows designing a dedicated circuit able to provide a digital signal externally in PDM format.

The MP34DT04 has an acoustic overload point of 120 dBSPL with a 64 dB signal-to-noise ratio and –26 dBFS sensitivity.

The MP34DT04 is available in a top-port, SMD-compliant, EMI-shielded package and is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

  • All features

    • Single supply voltage
    • Low power consumption
    • 120 dBSPL acoustic overload point
    • 64 dB signal-to-noise ratio
    • Omnidirectional sensitivity
    • –26 dBFS sensitivity
    • PDM output
    • HCLGA package
      • Top-port design
      • SMD-compliant
      • EMI-shielded
      • ECOPACK®, RoHS, and “Green” compliant

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STMicroelectronics - MP34DT04

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