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Product Detailed Parameters
- Description：MIC MEMS DIGITAL PDM OMNI -26DB
- Series：CMM
- Mfr：Same Sky (Formerly CUI Devices)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：MEMS (Silicon)
- Output Type：Digital, PDM
- Direction：Omnidirectional
- Frequency Range：100 Hz ~ 10 kHz
- Sensitivity：-26dB ±1dB
- S/N Ratio：65dB
- Impedance：100 Ohms
- Voltage Range：1.6 V ~ 3.6 V
- Current - Supply：850 µA
- Port Location：Top
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.157" L x 0.118" W (4.00mm x 3.00mm)
- Height (Max)：0.039" (1.00mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：1.8 V
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Overview
The CMM-4030DT-26165-TR is a digital MEMS microphone manufactured by Same Sky. It features a PDM output interface and operates within a voltage range of 1.6 V to 3.6 V. The device draws a supply current of 540 µA and provides a sensitivity of -26 dB ±1 dB at 94 dB SPL. Its frequency response spans from 100 Hz to 10 kHz, with a signal-to-noise ratio of 65 dB. The component measures 4.00 mm in length, 3.00 mm in width, and has a maximum height of 1.10 mm.
Feature Summary
- Digital PDM output interface for direct connection to processors
- Omnidirectional acoustic port design for versatile sound capture
- Low power consumption suitable for battery-operated devices
Applications
- Wireless IP phones
- Portable audio recording equipment
- Smart home voice assistants
Procurement Notes
Verify the specific suffix (26165) against the manufacturer's latest datasheet to confirm pinout and sensitivity tolerances. Ensure the ordering code matches the required tape-and-reel packaging quantity. Cross-reference the RoHS status and MSL rating with your assembly requirements before finalizing procurement.
Selection Notes
Select this component when a digital PDM interface is required instead of analog output. Consider the 65 dB SNR and -26 dB sensitivity for standard voice recognition tasks. Verify that the 1.6 V to 3.6 V operating voltage aligns with the target system's logic levels and power budget constraints.
Part Context
This part belongs to the CMM series of MEMS microphones from Same Sky. It utilizes silicon-based technology for consistent performance. The product is designed for surface-mount assembly, offering a compact footprint suitable for modern miniaturized electronic designs requiring reliable audio input capabilities.
Replacement Considerations
Consult the official Same Sky replacement guide for verified substitutes. Generic MEMS microphones may differ in PDM timing or sensitivity. Do not assume compatibility without verifying electrical parameters and mechanical dimensions against the original specification sheet.
