CMM-2718AT-42358-TR

$1.13

Description：MIC MEMS ANALOG OMNI -42DB
Series：CMM
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:f34956e6bec3 Category: Microphones Brand: Same Sky (Formerly CUI Devices)

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Product introduction

Product Detailed Parameters

Description：MIC MEMS ANALOG OMNI -42DB
Series：CMM
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)
Type：MEMS (Silicon)
Output Type：Analog
Direction：Omnidirectional
Frequency Range：100 Hz ~ 10 kHz
Sensitivity：-42dB ±3dB
S/N Ratio：58dB
Impedance：200 Ohms
Voltage Range：1.5 V ~ 3.6 V
Current - Supply：170 µA
Port Location：Top
Ratings：-
Termination：Solder Pads
Size / Dimension：0.108" L x 0.073" W (2.75mm x 1.85mm)
Height (Max)：0.037" (0.95mm)
Shape：Rectangular
Grade：-
Qualification：-
Voltage - Rated：1.8 V

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CMM-2718AT-42358-TR

Overview

The CMM-2718AT-42358-TR is an omnidirectional MEMS microphone manufactured by Same Sky. It features a rectangular surface-mount package with dimensions of 2.75 mm x 1.85 mm x 0.9 mm and a top port configuration. The device operates on a supply voltage of 2 Vdc with a current consumption of 160 µA. It delivers a sensitivity of -42 dB and a signal-to-noise ratio of 58 dBA. The frequency range spans from 100 Hz to 10 kHz, supporting analog output for audio applications.

Feature Summary

Omnidirectional acoustic design for uniform sound capture
Surface-mount technology compatible with automated assembly
Low power consumption suitable for battery-operated devices

Applications

Consumer electronics audio input
Portable communication devices
Voice recognition systems

Procurement Notes

Verify the specific suffix '358' against official Same Sky documentation to confirm the exact sensitivity and SNR ratings, as these parameters vary across the CMM-2718 series. Ensure compatibility with the target operating voltage and interface requirements before finalizing procurement specifications.

Selection Notes

Select this component when a compact, low-power omnidirectional microphone is required for SMT assembly. The top-port design facilitates placement in enclosures with external acoustic openings. Verify that the 160 µA current draw aligns with the system's power budget and that the 2 V supply rail matches the application's voltage constraints.

Part Context

This part belongs to the CMM series of MEMS microphones from Same Sky. The series offers various sensitivity and package options tailored for different audio performance needs. The CMM-2718 form factor provides a small footprint for space-constrained designs.