CMM-2718AB-38162W-TR

Overview

The CMM-2718AB-38162W-TR is an omnidirectional MEMS microphone manufactured by Same Sky. It features analog output and operates within a supply voltage range of 1.5 V to 3.6 V. The device provides a frequency range of 20 Hz to 20 kHz with a sensitivity rating of -38 dB and a signal-to-noise ratio of 62 dBA. It utilizes a rectangular SMD/SMT package measuring 2.75 mm in length, 1.85 mm in width, and 0.9 mm in depth. The unit draws current at the bottom port termination.

Feature Summary

• Omnidirectional acoustic design for uniform sound capture
• Analog output interface compatible with standard audio circuits
• Compact rectangular surface-mount form factor

Applications

• Portable consumer electronic devices
• Voice recognition systems
• Audio recording equipment

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm that the specific suffix matches the required sensitivity and SNR specifications for the target application. Ensure storage conditions comply with moisture sensitivity level requirements prior to soldering processes.

Selection Notes

Select this model when a wide frequency response is required alongside low power consumption. The bottom port configuration suits designs where acoustic access is limited to the underside of the PCB. Verify impedance matching with the pre-amplifier stage to maintain optimal signal integrity.

Part Context

This component belongs to the CMM series of MEMS microphones from Same Sky. It represents a silicon-based acoustic sensor designed for high-volume manufacturing integration. The product line emphasizes miniaturization while maintaining consistent acoustic performance across various operating temperatures.

Replacement Considerations

CMM-2718AT-38164W-TR and CMM-2718AB-38164W-TR are listed as related models within the same family. Cross-reference pinout compatibility and acoustic center alignment before substituting.