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Product Detailed Parameters
- Description：MIC MEMS ANALOG OMNI -38DB
- Series：SiSonic™ SPH
- Mfr：Syntiant
- Package：Tray
- Type：MEMS (Silicon)
- Output Type：Analog
- Direction：Omnidirectional
- Frequency Range：-
- Sensitivity：-38dB ±1dB @ 94dB SPL
- S/N Ratio：65dB
- Impedance：500 Ohms
- Voltage Range：1.5 V ~ 3.6 V
- Current - Supply：185 µA
- Port Location：Top
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.138" L x 0.104" W (3.50mm x 2.65mm)
- Height (Max)：0.039" (1.00mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：-
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Overview
The SPH1642HT5H is an omnidirectional analog MEMS microphone manufactured by Syntiant. It operates within a voltage range of 1.5 V to 3.6 V and draws a supply current of 185 µA. The device features a sensitivity of -38 dB ±1 dB at 94 dB SPL, with a signal-to-noise ratio of 65 dB. Its frequency response spans from 50 Hz to 10 kHz, and it has an impedance of 500 Ohms. The component measures 3.50 mm in length, 2.65 mm in width, and 1.10 mm in height, utilizing solder pad termination.
Feature Summary
- Omnidirectional acoustic porting for uniform sound capture
- Low power consumption suitable for battery-operated devices
- Analog output interface for direct integration
Applications
- Voice recognition systems
- Smart home audio devices
- Portable consumer electronics
Procurement Notes
Verify the specific suffix (e.g., HT5H-1) as the base model may denote a series. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check for obsolescence notices, as this part is listed as obsolete in some distributor databases. Ensure the analog output interface matches your system's ADC input specifications.
Selection Notes
Select this component when an analog output is required rather than digital PDM. Consider the 500 Ohm impedance for proper pre-amplifier matching. The low supply current makes it suitable for energy-constrained applications. Verify that the 50 Hz lower frequency cutoff meets your application's bass response needs.
Part Context
This microphone belongs to the SiSonic SPH series from Syntiant, which focuses on silicon-based MEMS technology. The series includes both analog and digital variants designed for various audio processing tasks. Syntiant provides these components for edge AI and voice-enabled applications requiring reliable acoustic sensing.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. As the part is marked obsolete, consult Syntiant or authorized distributors for potential lifecycle alternatives or last-time buy information.
