SPW0442HR5H-1

Overview

The SPW0442HR5H-1 is a miniature, high-performance analog MEMS microphone from the SiSonic family. It features top-port acoustic design and omnidirectional sound pickup. The device operates on a supply voltage range of 1.5 V to 3.6 V with a typical operating current of 250 µA. Key electrical specifications include a sensitivity of -42 dB ±1 dBV at 94 dB SPL, a signal-to-noise ratio (SNR) of 59 dBA, and a dynamic range supporting up to 130 dB SPL. The frequency response spans 10 Hz to 10 kHz with a power supply rejection ratio (PSRR) of 66 dB.

Feature Summary

• Top-port acoustic configuration for precise sound capture
• Omnidirectional sensitivity pattern for uniform audio input
• Low power consumption suitable for battery-operated devices
• High dynamic range capability for clear audio in varying environments

Applications

• Voice recognition systems
• Consumer electronics audio input
• Smart home devices
• Portable communication equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for lifecycle notifications as this part may be subject to obsolescence. Ensure packaging specifications match production requirements, noting that factory pack quantities may vary. Validate datasheet revisions against current design-in documentation to guarantee parameter accuracy.

Selection Notes

Select this component when a low-power, high-SNR analog MEMS microphone is required. The top-port design suits applications needing specific acoustic filtering or placement constraints. Compare SNR and SPL limits against target environment noise levels. Ensure the 1.5 V to 3.6 V supply range aligns with system power architecture. Consider the 10 Hz to 10 kHz bandwidth for voice-centric applications.

Part Context

The SPW0442HR5H-1 belongs to Syntiant's SiSonic series of silicon microphones. This line utilizes advanced MEMS technology to deliver high performance in compact packages. The series includes various port configurations and output types tailored for different audio processing needs within modern electronic devices.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Syntiant documentation for potential cross-references or updated product lines.