Home PDM MEMS Microphone Unit (SPM1423)

PDM MEMS Microphone Unit (SPM1423)

Munich
Sale price €4,90

📦 Location of the warehouse: Munich

3 in stock

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PDM MEMS Microphone Unit (SPM1423)

PDM MEMS Microphone Unit (SPM1423)

€4,90

PDM mini Unit is a digital MEMS silicon-based microphone that utilizes Pulse-Density Modulation (PDM) signaling. This microphone is known for its high signal-to-noise ratio, high sensitivity, low power consumption, resistance to RF interference, and smooth frequency response. It automatically switches microphone states (power-off/active/sleep) based on the clock frequency, making it suitable for a wide range of applications in wearable devices and smart digital devices for audio data capture.

One of the key advantages of the PDM mini Unit is its digital output format. Instead of providing analog signals, it utilizes the PDM technique, which converts the audio signal into a digital bitstream based on the density of pulses. This digital output makes it convenient for integration with digital signal processors (DSPs) or microcontrollers, as it eliminates the need for additional analog-to-digital conversion.

PDM mini Unit offers high performance in terms of capturing audio with excellent fidelity. Its high signal-to-noise ratio ensures clear and accurate audio recordings, while its high sensitivity allows for capturing even subtle sounds. The low power consumption makes it suitable for battery-powered devices, extending their operational life. Additionally, its resistance to RF interference ensures reliable audio capture in the presence of electromagnetic signals.

This microphone is well-suited for applications where compact size, low power consumption, and high-quality audio capture are essential. It finds use in various devices such as wearable technology, smartwatches, smartphones, tablets, voice-controlled devices, and other smart digital devices that require audio data collection and analysis.

Features

I2S PORT, encoding output (CLK/DAT)
High sensitivity, high signal to noise ratio
Low power consumption
Anti-radio frequency interference
Compatible with LEGO

Include

  • 1x PDM mini Unit
  • 1x HY2.0 4P Cable(5CM)

Applications

  • Spectrum Analyzer
  • Recorder
  • Noise meter

Specification

Digital microphone SPM1423
Sensitivity 94dB SPL@1KHz Nom.:-22dBFS
Signal to Noise Ratio 94dB SPL@1KHz,A-weighted Nom.:61.4dB
Total Harmonic Distortion 100dB SPL@1KHz Nom.:1%
Working Current 600µA
Net Weight 4g
Gross Weight 8g
Product Size 24*24*13mm
Package Size 35*36*18mm
Case material Plastic(PC)

Effective Date: March 27, 2025

At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.

  

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Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.

  

2. Warranty Policy

Warranty Period

The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.

Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.

If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.

After the warranty period, support may still be available at a reasonable fee.

  

Warranty Exclusions

The warranty does not apply in the following cases:

  • The product is beyond the 12-month warranty period.
  • Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
  • Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
  • Unauthorized repair attempts by the customer.
  • The product is not defective but has been opened and is non-returnable by policy.

   

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  • Return for Refund: Within 15 days of receipt (unopened).
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  • Exchange Window: Up to 30 days from receipt.

Please email us at info@openelab.io for a return authorization before sending anything back.

  

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  • A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.

   

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