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Product Detailed Parameters
- Description：MIC MEMS DIGITAL -26DB OMNI
- Series：-
- Mfr：Goertek Microelectronics Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MEMS (Silicon)
- Output Type：-
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 8 kHz
- Sensitivity：-26dB ±1dB @ 94dB SPL
- S/N Ratio：64dB
- Impedance：-
- Voltage Range：1.62 V ~ 3.6 V
- Current - Supply：750 µA
- Port Location：Top
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.157" L x 0.079" W (4.00mm x 2.00mm)
- Height (Max)：0.047" (1.20mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：1.8 V
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Overview
The SD33OT261-003 is a digital MEMS microphone manufactured by Goertek Microelectronics Inc. It features an omnidirectional acoustic port and operates within a voltage range of 1.62 V to 3.6 V. The device provides a sensitivity of -26 dB ±1 dB at 94 dB SPL, referenced at 94 dB SPL. Its frequency response spans from 100 Hz to 8 kHz. The component utilizes solder pads for surface mount assembly, ensuring reliable integration into compact electronic designs requiring high-fidelity audio capture.
Feature Summary
- Digital output interface for direct connection to host processors
- Omnidirectional sound pickup pattern for uniform audio reception
- Silicon MEMS construction for durability and consistency
Applications
- Consumer electronics audio input systems
- Voice recognition modules
- Portable communication devices
Procurement Notes
Verify the manufacturer part number SD33OT261-003 against official Goertek Microelectronics documentation to confirm specifications. Ensure compatibility with system voltage levels between 1.62 V and 3.6 V. Check for required pull-up resistors or specific I2S/TDM interface configurations as defined in the datasheet. Confirm package type matches PCB footprint requirements.
Selection Notes
Select this component when a digital MEMS microphone with omnidirectional characteristics is required. Consider the 100 Hz to 8 kHz bandwidth for voice-centric applications. Evaluate the -26 dB sensitivity against ambient noise levels. Verify that the host controller supports the digital interface protocol used by this specific model.
Part Context
This part belongs to the Goertek Microelectronics digital MEMS microphone family. These components are designed for modern audio applications requiring low power consumption and high signal integrity. The series typically offers various sensitivity and frequency response options to suit different device form factors and acoustic environments.
Replacement Considerations
Consult official substitution lists from Goertek Microelectronics for verified equivalents. Cross-reference pinouts and electrical parameters before replacing. Generic digital microphones may not match the specific sensitivity or interface timing requirements.
