SDMO07C-26/1281

Overview

The SDMO07C-26/1281 is a digital MEMS microphone manufactured by BeStar Technologies, Inc. It operates within a voltage range of 1.6 V to 3.6 V and features an omnidirectional acoustic design. The device utilizes an I2S digital interface for data transmission. Its sensitivity is specified at -26 dB ±1 dB. The physical dimensions are approximately 4 mm x 3 mm x 1.25 mm, with solder pad termination for surface mount assembly.

Feature Summary

• Digital output via I2S interface
• Omnidirectional sound pickup pattern
• Silicon MEMS construction

Applications

• Consumer electronics audio input
• Voice recognition systems
• Mobile communication devices

Procurement Notes

Verify the specific suffix /1281 against the manufacturer's official documentation to confirm tape and reel packaging specifications. Ensure compatibility with the target system's I2S clocking requirements and supply voltage levels before integration. Cross-reference the part number with the latest datasheet revision to confirm pinout and mechanical tolerances.

Selection Notes

Select this component when a digital I2S output is required rather than analog PDM or analog signals. The -26 dB sensitivity rating suits applications requiring moderate gain stages. Verify that the 1.6 V to 3.6 V operating range aligns with the host processor's I/O voltage levels to ensure signal integrity without additional level shifting.

Part Context

This part belongs to the SDM series of microphones from BeStar Technologies. It represents a silicon-based MEMS technology designed for compact electronic assemblies. The digital nature distinguishes it from analog counterparts in the same product family, offering direct connectivity to digital signal processors.

Replacement Considerations

Consult official substitution lists for equivalent digital MEMS microphones with matching I2S interfaces and similar sensitivity ratings. Physical footprint compatibility must be verified if replacing on existing PCBs.