CMM-2718AB-38164W-TR

$1.38

Description：2.75MMX1.85MMX.9MM, OMNI, ANALOG
Series：CMM
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:4ebf76d5d7a3 Category: Microphones Brand: Same Sky (Formerly CUI Devices)

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Product introduction

Product Detailed Parameters

Description：2.75MMX1.85MMX.9MM, OMNI, ANALOG
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：20 Hz ~ 20 kHz
Sensitivity：-38dB ±1dB @ 94dB SPL
S/N Ratio：64dB
Impedance：170 Ohms
Voltage Range：1.5 V ~ 3.6 V
Current - Supply：175 µA
Port Location：Bottom
Ratings：-
Termination：-
Size / Dimension：0.108" L x 0.073" W (2.75mm x 1.85mm)
Height (Max)：0.039" (1.00mm)
Shape：Rectangular
Grade：-
Qualification：-
Voltage - Rated：-

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CMM-2718AB-38164W-TR

Overview

The CMM-2718AB-38164W-TR is an analog MEMS microphone manufactured by Same Sky. It features a rectangular shape with dimensions of 2.75 mm x 1.85 mm x 0.9 mm. The device operates on a supply voltage range of 1.5 V to 3.6 V and draws current at specified levels for its class. It provides omnidirectional sound pickup with a bottom port location. The frequency response spans from 20 Hz to 20,000 Hz, supporting wideband audio capture. Termination is achieved via solder pads suitable for surface mount technology.

Feature Summary

Omnidirectional acoustic design for uniform sound capture
Wide frequency response covering 20 Hz to 20,000 Hz
Compact rectangular form factor for space-constrained layouts

Applications

Consumer electronics audio input modules
Voice recognition systems
Portable recording devices

Procurement Notes

Verify the specific sensitivity and signal-to-noise ratio values against the official manufacturer datasheet, as these parameters vary significantly within the CMM series. Confirm that the bottom port orientation aligns with your acoustic venting requirements. Ensure the operating voltage range matches your system's power supply rails before finalizing the component selection.

Selection Notes

Select this component when a broad frequency response is required compared to standard voice-band microphones. The bottom port configuration necessitates careful PCB layout to ensure unobstructed acoustic access. Verify compatibility with surface mount assembly processes and confirm that the analog output interface meets the input specifications of the connected audio processing circuitry.

Part Context

This part belongs to the Same Sky CMM series of MEMS microphones. The series offers various configurations in terms of sensitivity, output type, and port location. The CMM-2718AB variant specifically denotes an analog output model with a bottom port, distinguishing it from top-port or digital variants within the same physical footprint family.