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Product Detailed Parameters
- Description：AUDIO MICROPHONE
- Series：SPM
- Mfr：Syntiant
- Package：Bulk
- Type：MEMS (Silicon)
- Output Type：Analog
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 8 kHz
- Sensitivity：-22dB
- S/N Ratio：-
- Impedance：300 Ohms
- Voltage Range：1.5 V ~ 3.6 V
- Current - Supply：350 µA
- Port Location：Top
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.186" L x 0.148" W (4.72mm x 3.76mm)
- Height (Max)：0.049" (1.25mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：-
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Overview
The SPM0208HD5H is an analog MEMS microphone manufactured by Syntiant, belonging to the SiSonic series. It features a top-port silicon design with omnidirectional acoustic sensitivity. The device operates within a supply voltage range of 1.5 V to 3.6 V and draws a typical operating current of 350 µA. Key electrical specifications include a signal-to-noise ratio (SNR) of 59 dB and a sensitivity of -22 dB ±3 dB at 94 dB SPL. The frequency response spans from 100 Hz to 10 kHz, with an output impedance of 300 Ohms.
Feature Summary
- Analog bottom-port silicon microphone architecture
- High signal-to-noise ratio performance
- Low power consumption operation
- Omnidirectional acoustic pickup
Applications
- Voice recognition systems
- Smart home devices
- Portable audio recorders
- Hands-free communication modules
Procurement Notes
Verify component status as this part may be discontinued or subject to limited availability. Confirm exact ordering suffixes for packaging variations such as tape and reel quantities. Ensure compatibility with existing PCB footprints and soldering profiles during integration planning.
Selection Notes
Select this model for applications requiring high SNR in a compact form factor. Compare sensitivity and noise floor requirements against alternative top-port or digital PDM microphones. Verify that the 300 Ohm output impedance matches the input stage of the connected amplifier or ADC interface.
Part Context
This component is part of Syntiant's SiSonic™ MEMS microphone portfolio, designed for consumer electronics requiring reliable voice capture. It serves as an analog alternative to digital PDM microphones, simplifying interface circuits by providing a direct analog output suitable for standard audio amplifiers.
Replacement Considerations
Check for direct substitutes within the SPM0208 series or compatible Syntiant models with matching pinouts and electrical characteristics. Verify if newer revisions have replaced this specific part number in the manufacturer's lineup.
