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Unit Mini PDM

SKU:U089

Description

Unit Mini PDM is a digital MEMS silicon microphone based on PDM (Pulse Density Modulation) signals. It features high signal-to-noise ratio, high sensitivity, low power consumption, strong RF interference immunity, and smooth frequency response. The microphone automatically switches states (power-off / active / sleep) according to the clock frequency, making it suitable for audio data acquisition in wearable devices and smart digital devices.

Features

  • PDM signal output (CLK/DAT)
  • High sensitivity and high signal-to-noise ratio
  • Low power consumption
  • Strong RF interference immunity
  • LEGO-compatible

Includes

  • 1 x Unit Mini PDM
  • 1 x HY2.0-4P Grove Cable (5cm)

Applications

  • Spectrum analyzer
  • Audio recording
  • Sound level meter

Specifications

Specification Parameter
Digital Mic SPM1423
Sensitivity 94dB SPL@1KHz Typical: -22dBFS
SNR 94dB SPL@1KHz, A-weighted Typical: 61.4dB
THD 100dB SPL@1KHz Typical: 1%
Operating Current 600µA
Enclosure Material Plastic (PC)
Product Size 24.0 x 24.0 x 13.0mm
Product Weight 4.0g
Package Size 138.0 x 93.0 x 7.0mm
Gross Weight 8.0g

Schematics

PinMap

Unit Mini PDM

HY2.0-4P Black Red Yellow White
PORT.B GND 5V Data Clock

Model Size

Datasheets

Softwares

Arduino

UiFlow2

EasyLoader

Easyloader Download Note
Unit PDM Test Easyloader download /

Video