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SPM1423HM4H-B - Digital High-SNR SiSonic Microphone

General Description

Lo/Hi (L/R) Select This pin is internally pulled low.

Notes:Pick Area only extends to 0.25 mm of any edge or hole unless otherwise specified.

Dimensions are in millimeters unless otherwise specified.

Key Features

  • Low Noise.
  • High Sensitivity.
  • Low Current.
  • RF Shielded.
  • PDM Output.
  • Supports Dual Multiplexed Channels.
  • Ultra-Stable Performance.
  • Standard SMD Reflow.
  • Omnidirectional Revision: D Sheet 1 of 13 6/18/2013 ©2013 Knowles Electronics SPM1423HM4H-B 1.

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Datasheet Details

Part number SPM1423HM4H-B
Manufacturer Knowles Electronics
File Size 642.18 KB
Description Digital High-SNR SiSonic Microphone
Datasheet download datasheet SPM1423HM4H-B Datasheet

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Full PDF Text Transcription for SPM1423HM4H-B (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for SPM1423HM4H-B. For precise diagrams, tables, and layout, please refer to the original PDF.

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SPM1423HM4H-B Digital High-SNR SiSonicTM Microphone The SPM1423HM4H-B is a miniature, highperformance, low power, top port silicon digital microphone with a single bit PDM output. Using Knowles’ proven high performance SiSonicTM MEMS technology, the SPM1423HM4H-B consists of an acoustic sensor, a low noise input buffer, and a sigma-delta modulator. These devices are suitable for applications such as cellphones, smart phones, laptop computers, sensors, digital still cameras, portable music recorders, and other portable electronic devices where excellent audio performance and RF immunity are required. The increased sensitivity and high Signal-to-Noise-Ratio (SNR) of the SPM1423HM4H-B also enhances the performance of far-field applications and many complex, multimicrophone algorithms.