CMM-2718AT-38164W-TR

$1.30

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

SKU:fb11c210e6c2 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：Top
Ratings：-
Termination：-
Size / Dimension：0.108" L x 0.073" W (2.75mm x 1.85mm)
Height (Max)：0.043" (1.10mm)
Shape：Rectangular
Grade：-
Qualification：-
Voltage - Rated：-

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CMM-2718AT-38164W-TR

Overview

The CMM-2718AT-38164W-TR is an omnidirectional analog MEMS microphone manufactured by Same Sky. It features a compact rectangular surface-mount package measuring 2.75 mm in length, 1.85 mm in width, and 0.90 mm in height. The device operates within a voltage range of 1.6 V to 3.6 V and draws a supply current of 150 µA. It provides a sensitivity rating of -38 dB with a tolerance of ±1 dB at 94 dB SPL. The signal-to-noise ratio is specified as 64 dBA, and the frequency response spans from 20 Hz to 20,000 Hz.

Feature Summary

Omnidirectional acoustic port design for uniform sound capture
Analog output interface suitable for standard audio processing circuits
Ultra-thin profile optimized for space-constrained portable electronics

Applications

Portable consumer electronic devices
Voice recognition systems
Handheld communication equipment

Procurement Notes

Verify the specific suffix W-TR against official manufacturer documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with the target operating voltage range of 1.6 V to 3.6 V during circuit design. Confirm that the analog output impedance matches the input requirements of the connected audio codec or amplifier stage.

Selection Notes

Select this component when a low-profile, omnidirectional microphone with high sensitivity is required for small form-factor designs. The wide frequency range supports full-spectrum audio capture. Verify that the board layout accommodates the 2.75 mm x 1.85 mm footprint and allows adequate acoustic access to the top port.

Part Context

This part belongs to the Same Sky CMM series of MEMS microphones, which are designed for high-performance audio applications. The series offers various sensitivity and package options to accommodate different design constraints. The CMM-2718AT variant specifically denotes a top-port configuration within this family.

Replacement Considerations

Consult official substitution lists for direct equivalents. Cross-reference pinouts and acoustic characteristics when considering alternative manufacturers.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.