SPUL409HE5H-PB-2

Overview

The Syntiant SPUL409HE5H-PB-2 is a silicon MEMS microphone featuring an analog output and omnidirectional sound pickup. It operates within a voltage range of 1.5 V to 3.6 V, drawing a supply current of 190 µA. The device exhibits a sensitivity of -42 dB ±3 dB at 94 dB SPL and achieves a signal-to-noise ratio of 59 dB. Its electrical impedance is specified as 300 Ohms. The frequency response spans from 100 Hz to 10 kHz. Physically, the component measures 3.76 mm in length, 2.95 mm in width, and has a maximum height of 1.20 mm. It utilizes a top port configuration with pad termination.

Feature Summary

• Utilizes silicon MEMS technology for compact surface-mount integration
• Provides analog audio output signals for direct processing
• Features omnidirectional acoustic sensitivity for uniform sound capture
• Designed for low-power operation suitable for portable electronics

Applications

• Voice recognition systems requiring high-fidelity audio input
• Portable consumer electronic devices with strict power constraints
• Hands-free communication modules in mobile terminals
• Smart home voice control interfaces

Procurement Notes

Verify part authenticity through authorized distributors or official manufacturer channels. Confirm RoHS3 compliance status prior to procurement. Check for obsolete status indicators as the component may be discontinued. Ensure packaging specifications match design requirements. Validate datasheet revisions against current production batches.

Selection Notes

Evaluate compatibility with existing analog front-end circuits regarding impedance matching. Consider the operating voltage range alignment with system power rails. Assess physical footprint constraints against PCB layout limitations. Review acoustic performance metrics relative to specific application noise environments. Verify thermal stability requirements for intended operational conditions.

Part Context

This component belongs to the SiSonic series of MEMS microphones manufactured by Syntiant. The series focuses on providing high-performance audio sensing solutions for embedded applications. The product line emphasizes low power consumption and small form factors suitable for modern portable devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.