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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 @ 94dB SPL
- S/N Ratio：65dB
- Impedance：-
- Voltage Range：1.6 V ~ 3.6 V
- Current - Supply：540 µA
- Port Location：Top
- Ratings：-
- Termination：Solder Pads
- Size / Dimension：0.157" L x 0.118" W (4.00mm x 3.00mm)
- Height (Max)：0.043" (1.10mm)
- Shape：Rectangular
- Grade：-
- Qualification：-
- Voltage - Rated：2 V
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Overview
The CMM-4030DT-26154-TR is a digital MEMS microphone manufactured by Same Sky. It features an omnidirectional acoustic port and utilizes Pulse Density Modulation (PDM) for data output. The device operates within a voltage range of 1.6 V to 3.6 V and draws a supply current of 860 µA. It provides a sensitivity of -26 dB ±3 dB at 94 dB SPL and achieves a signal-to-noise ratio of 58 dBA. The frequency response spans from 100 Hz to 10 kHz. The component is housed in a rectangular surface-mount package measuring 4.0 mm in length, 3.0 mm in width, and 1.15 mm in height.
Feature Summary
- Digital PDM output interface for direct connection to processors
- Omnidirectional sound pickup capability
- Compact surface-mount design suitable for space-constrained applications
Applications
- Smart home voice control devices
- Portable consumer electronics audio input
- Wearable technology audio recording
Procurement Notes
Verify the specific suffix codes against the manufacturer's official documentation to confirm exact sensitivity and packaging variations. Ensure compatibility with the target system's logic voltage levels and PDM clock requirements before finalizing procurement specifications.
Selection Notes
Select this component when a digital interface is required to minimize analog noise susceptibility. Consider the 58 dBA SNR and -26 dB sensitivity for standard voice recognition tasks. Verify that the PCB layout supports the small form factor and thermal characteristics defined in the datasheet.
Part Context
This part belongs to the CMM series of MEMS microphones from Same Sky. The series offers various configurations including different sensitivities and output types. This specific model focuses on providing a balanced performance profile for general-purpose digital audio capture in compact electronic assemblies.
Replacement Considerations
Consult official substitution lists for equivalent digital MEMS microphones with matching PDM interfaces and similar dimensional constraints. Verify pinout compatibility and electrical parameter alignment before implementing any alternative components.
