SPG18P4HM4H-1

Overview

The Syntiant SPG18P4HM4H-1 is a silicon digital MEMS microphone featuring top-port acoustic access and an omnidirectional polar pattern. It delivers a sensitivity of -26 dB and a signal-to-noise ratio of 64 dB across a frequency range of 30 Hz to 10 kHz. The device operates on a supply voltage between 1.65 V and 3.6 V with a current consumption of 715 uA. It outputs PDM digital signals via an LGA-6 package measuring 4 mm x 2 mm x 1.1 mm, suitable for surface mount installation within a temperature range of -40°C to +100°C.

Feature Summary

• Integrates a MEMS sensor with a digital PDM output interface for direct connectivity to host processors.
• Features a top-port design allowing flexible acoustic placement on printed circuit boards.
• Provides omnidirectional sound capture capability for consistent audio pickup from all directions.

Applications

• Voice-enabled smart home devices
• Portable consumer electronics
• Hands-free communication systems

Procurement Notes

Verify component authenticity through authorized distributors or the manufacturer directly. Confirm that the received part matches the specific SPG18P4HM4H-1 designation and packaging format. Ensure storage conditions comply with moisture sensitivity levels prior to soldering. Review the latest datasheet for any updates regarding pin configurations or electrical characteristics before finalizing integration plans.

Selection Notes

Select this component when a compact digital microphone with low power consumption is required. The top-port configuration facilitates mechanical design flexibility compared to bottom-port alternatives. Verify that the host system supports PDM interfaces and can accommodate the specified voltage and current requirements. Consider the operating temperature range to ensure reliability in the intended deployment environment.

Part Context

This microphone belongs to the Syntiant SiSonic series of digital MEMS microphones. These components are engineered to provide high-fidelity audio capture while minimizing power usage in portable applications. The series integrates the acoustic transducer and analog-to-digital conversion into a single small form factor package.

Replacement Considerations

Consult official substitution lists for verified equivalents. Cross-reference specifications such as SNR, sensitivity, and package dimensions when evaluating alternative sources.