Wednesday, February 28, 2024

MEMS Microphone Boasts Robust IPX7 Waterproof Rating

By Akanksha Sondhi Gaur

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Discover the IPX7-rated MEMS microphone, which is impervious to moisture in rugged settings and offers versatility with a broad frequency range, wide temperature tolerance, reflow soldering compatibility, and affordability.

CUI Devices’ Audio Group has unveiled an addition to their product lineup, introducing the CMM-3424DT-26165-TR Micro-electromechanical systems (MEMS) microphone designed for use in challenging and demanding environments. This microphone has been engineered to meet the stringent requirements of harsh conditions, earning an impressive IPX7 waterproof rating. This rating ensures the microphone’s resilience against moisture and liquid ingress, making it a reliable choice for applications where environmental durability is paramount.

The microphone is compact and space-efficient, with dimensions measuring just 4 x 3 x 1 mm. This compact form allows versatile and unobtrusive installation in various devices and applications. This waterproof microphone has digital Pulse-density modulation (PDM) output, which enhances audio signal processing capabilities. It is equipped with a top port location, optimising its performance for specific applications. The specifications include:

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  • Sensitivity (dB) -26
  • Directivity Omnidirectional
  • Sensitivity Tolerance (dB) ±1
  • Operating Voltage (Vdc) 1
  • Operating Freq. (Hz) 100 ~ 10000
  • Signal: Noise Ratio (dBA) 65
  • Dimensions LxWxH (in) 0.15 x 0.12 x 0.04

This microphone has an IPX7 rating, rendering it impervious to moisture and liquid infiltration in rugged environments. It comes enclosed in a compact package measuring a mere 4 x 3 x 1 mm and offers an operating frequency range from 100 to 10,000 Hz. This MEMS microphone offers designers great flexibility with its wide operating frequency range, spanning from 100 to 10,000 Hz, and a generous operating temperature range extending from -40 to 100°C. It is compatible with reflow soldering processes. The model is readily available for purchase, with prices commencing at $1.82 per unit for orders of 1000 pieces or more through distribution channels. The microphone sets a new standard for durability in challenging conditions with its IPX7 waterproof rating. Its compact size, digital PDM output, and top port location make it a versatile and reliable choice for a wide range of applications requiring robust and high-quality audio capture.

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