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Product Detailed Parameters
- Description：MIC MEMS DIGITAL OMNI -26DB
- Series：SiSonic™
- Mfr：Syntiant
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MEMS (Silicon)
- Output Type：Digital, PDM
- Direction：Omnidirectional
- Frequency Range：45 Hz ~ 15.5 kHz
- Sensitivity：-26dB ±1dB
- S/N Ratio：64dB
- Impedance：-
- Voltage Range：1.6 V ~ 3.6 V
- Current - Supply：620 µA
- Port Location：Bottom
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.138" L x 0.104" W (3.50mm x 2.65mm)
- Height (Max)：0.043" (1.08mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：1.8 V
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Overview
The SPH0141LM4H-1 is a digital MEMS microphone from the SiSonic family, manufactured by Syntiant. It features an omnidirectional acoustic port and bottom sound inlet. The device outputs PDM data with a sensitivity of -26 dB ±1 dBV and a signal-to-noise ratio of 64 dBA. It operates on a single supply voltage ranging from 1.6 V to 3.6 V. Power consumption is specified at 235 µA in low-power mode and 620 µA in standard mode. The component supports a maximum sound pressure level of 120 dB SPL and has a frequency response starting at 45 Hz.
Feature Summary
- Digital PDM output interface for direct connection to processors
- Low power consumption with selectable operational modes
- High signal-to-noise ratio for clear audio capture
- Bottom port design for flexible PCB integration
Applications
- Voice-controlled smart home devices
- Mobile communication handsets
- Wearable audio equipment
- Internet of Things (IoT) voice sensors
Procurement Notes
Verify the specific revision suffix and packaging configuration against the official Syntiant datasheet before ordering. Confirm that the intended operating voltage aligns with the 1.6 V to 3.6 V range. Ensure ESD protection measures are implemented during handling, as the device is moisture sensitive. Cross-reference the part number with authorized distributors to guarantee authenticity and traceability.
Selection Notes
Select this component when a balance of high audio fidelity and low power usage is required for battery-operated devices. The wide supply voltage range allows compatibility with various system architectures. Consider the bottom port orientation for mechanical assembly constraints. Evaluate the 64 dBA SNR against ambient noise requirements in the target application environment.
Part Context
This microphone belongs to the SiSonic series, which integrates MEMS sensing elements with ASIC signal processing. Syntiant acquired the Knowles consumer MEMS business, incorporating these products into its portfolio. The SPH0141LM4H-1 represents a standard offering within this lineage, designed for mass-market consumer electronics requiring reliable digital audio input.
Replacement Considerations
Consult official Syntiant documentation for qualified alternative part numbers. Verify pinout compatibility and electrical specifications before substituting. Generic equivalents may not match the specific SNR or power characteristics.
