SPM0208HD5

Overview

The SPM0208HD5 is a silicon microphone manufactured by Knowles Acoustics, often associated with Syntiant's audio AI solutions. It operates within a voltage range of 1.5 V to 3.6 V and features an omnidirectional polar pattern. The device delivers a sensitivity of -22dB ±3dB at 94dB SPL and supports an acoustic frequency response from 100 Hz to 10 kHz.

Feature Summary

• Omnidirectional acoustic pickup pattern for consistent sound capture
• Silicon MEMS construction for reliable performance
• Compatible with low-voltage operation ranges

Applications

• Always-on audio processing in battery-powered devices
• Speech recognition systems requiring low power consumption
• Edge-AI audio event detection sensors

Procurement Notes

Verify the manufacturer designation on the component marking, as this specific model number originates from Knowles Acoustics rather than Syntiant directly. Ensure compatibility with your system's I2S or PDM interface requirements. Confirm that the operating voltage aligns with your microcontroller's logic levels before integration into the final design.

Selection Notes

Select this component when prioritizing ultra-low power consumption for continuous audio monitoring tasks. It is suitable for applications where cloud dependency must be avoided and local inference is required. Consider the package type and interface compatibility with your existing hardware architecture during the selection process.

Part Context

This microphone serves as an input sensor for Syntiant's Neural Decision Processors, enabling efficient edge-AI deployment. It complements Syntiant's deep-learning models designed for always-on audio applications, allowing devices to perform real-time speech and audio analysis with minimal energy usage.