CMM-3722AT-42208-TR

Overview

The CMM-3722AT-42208-TR is a surface-mount MEMS microphone manufactured by Same Sky. It features an analog output and operates on a 2 VDC supply with a current consumption of 160 µA. The device provides a sensitivity of -42 dB with a tolerance of ±3 dB and achieves a signal-to-noise ratio of 57 dBA. Its frequency range spans from 100 Hz to 10 kHz, and it has an impedance of 300 ohms. Designed for top-port applications, the component functions reliably within a temperature range of -40°C to +105°C.

Feature Summary

• Top-port acoustic design for directional sound capture
• Low power consumption suitable for battery-operated devices
• High signal-to-noise ratio for clear audio reproduction

Applications

• Smart home voice assistants
• Portable consumer electronics
• Hands-free communication modules

Procurement Notes

Verify the specific suffix against official documentation to confirm exact acoustic tuning and packaging specifications. Ensure compatibility with standard reflow soldering profiles for SMD/SMT assembly processes. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement plans.

Selection Notes

Select this component when a low-profile, high-SNR MEMS microphone is required for compact designs. The 2V operating voltage suits low-power systems. Verify that the 100 Hz to 10 kHz frequency response aligns with the target application's audio bandwidth requirements.

Part Context

This part belongs to the CMM series of MEMS microphones from Same Sky. These components are engineered for integration into portable electronic devices requiring reliable acoustic sensing. The series offers various port configurations and sensitivity levels to meet diverse audio input needs in modern consumer hardware.

Replacement Considerations

Consult official substitution lists for verified equivalents. Cross-reference pinouts and acoustic characteristics carefully when considering alternative suppliers or updated revisions.