SPU0409LE5H-QB

Overview

The SPU0409LE5H-QB is a miniature, bottom-port silicon MEMS microphone manufactured by Syntiant. It operates within a voltage range of 1.5 V to 3.6 V and features an analog output type with solder pad termination. The device exhibits omnidirectional sound pickup characteristics and maintains a frequency response spanning from 100 Hz to 10 kHz. Its sensitivity is specified at -38dB ±3dB relative to 1V/Pa at a sound pressure level of 94dB SPL.

Feature Summary

• Bottom-port acoustic design for compact integration
• Analog signal output capability
• Omnidirectional sound reception pattern

Applications

• Edge AI audio processing systems
• Battery-powered voice recognition devices
• Smart home voice assistants

Procurement Notes

Verify the specific suffix 'QB' against official Syntiant documentation to confirm exact mechanical and electrical specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure compatibility with existing PCB footprint designs as dimensions are critical for bottom-port implementations.

Selection Notes

Select this component when low power consumption and small form factor are required for analog audio capture. Consider the 1.5 V to 3.6 V operating range for system power budgeting. Evaluate the -38dB sensitivity against ambient noise levels in the target application environment.

Part Context

This microphone belongs to the SiSonic™ series, designed for neural decision processing applications. It utilizes silicon MEMS technology to provide high performance in a miniature package. The product line focuses on enabling deep learning algorithms at the edge with minimal power overhead.

Replacement Considerations

Check for updated part numbers from Syntiant or Knowles Electronics. Verify pinout and dimensional compatibility if substituting with other SiSonic models. Confirm that alternative components support the same analog output interface and voltage requirements.