CMM-3526DB-37165-TR

Overview

The CMM-3526DB-37165-TR is a MEMS microphone from the Same Sky CMM series, designed for analog output applications. It features a bottom port configuration and operates within a voltage range of 1.6 V to 3.6 V. The device provides an SNR of 60 dBA with a sensitivity of -37 dB ±3 dB at 94 dB SPL. Its frequency response spans from 100 Hz to 10 kHz, supporting omnidirectional sound pickup in a compact 3.5 mm x 2.65 mm x 0.98 mm package.

Feature Summary

• Analog output interface for direct integration into audio processing circuits
• Bottom port design facilitates acoustic coupling in constrained enclosures
• Omnidirectional polar pattern ensures consistent sound capture from all directions

Applications

• Voice recognition systems requiring low-power analog microphones
• Consumer electronics such as smartphones and tablets
• Wearable devices with strict size and power constraints

Procurement Notes

Verify the specific suffix DB against official datasheets to confirm bottom port orientation and -37 dB sensitivity. Ensure compatibility with existing PCB layouts regarding the 3.5x2.65mm footprint. Confirm RoHS compliance status through manufacturer documentation before finalizing procurement.

Selection Notes

Select this component when a bottom-port MEMS microphone is required for analog signal chains. Compare sensitivity and SNR against system noise floors. Verify that the 1.6V to 3.6V supply range matches the target application's power architecture and current consumption limits.

Part Context

This part belongs to the Same Sky CMM series of MEMS microphones, which offers various configurations including top and bottom ports with analog or digital outputs. The series targets portable audio applications requiring high performance in small form factors.

Replacement Considerations

Check for pin-compatible alternatives within the CMM series, such as CMM-3526AB variants, ensuring identical package dimensions and electrical characteristics match the original design requirements.