SPM1437HM4H

Overview

The SPM1437HM4H is a digital MEMS microphone manufactured by Syntiant. It features an omnidirectional acoustic port and outputs PDM data. The device operates within a voltage range of 1.6 V to 3.6 V. It provides a sensitivity of -22 dB ±3 dB at 94 dB SPL. The frequency response spans from 100 Hz to 10 kHz. This component is designed for low-power audio sensing applications requiring reliable digital signal output.

Feature Summary

• Digital PDM output interface for direct connection to processors
• Omnidirectional acoustic design for uniform sound capture
• Wide operating voltage range supporting various system power rails

Applications

• Voice-enabled consumer electronics
• Smart home audio sensors
• IoT devices with always-on listening capabilities

Procurement Notes

Verify current availability status as manufacturing lifecycle changes may affect supply. Confirm package type and tape/reel specifications match assembly requirements. Check for any updated compliance certifications or tariff implications relevant to the shipping destination before finalizing orders.

Selection Notes

Select this component when a digital PDM microphone is required instead of analog alternatives. Ensure the host processor supports PDM input signals. Verify that the 1.6 V to 3.6 V operating range aligns with the target system's power supply architecture and noise requirements.

Part Context

Syntiant specializes in edge-AI solutions, integrating neural processing with sensing. The SPM1437HM4H belongs to their MEMS microphone portfolio, designed to support always-on audio features. These components enable local speech detection without constant cloud connectivity, reducing latency and power consumption in embedded systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for end-of-life notifications or recommended alternative series if this specific model is discontinued.