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WM7236E - Low Power Bottom Port Digital Silicon Microphone

Datasheet Summary

Description

The WM7236 is a low-profile digital silicon microphone, optimised for use with low-power ‘Always-on’ voice control applications, such as Cirrus Logic® SoundClear™ software.

The WM7236 supports two operational modes, selected according to the applied clock frequency.

Features

  • High SNR (63dB).
  • Low variation in sensitivity (±1dB tolerance).
  • Low current consumption - 10μA (Sleep) - 290μA (Voice mode) - 980μA (Hi-Fi Record mode).
  • PDM digital audio output.
  • Stereo/array operation.
  • Proprietary ADC technology - Reduced clock-jitter sensitivity - Low noise floor - Stable in overload condition.
  • Bottom Port LGA Package.
  • 1.62V to 2.0V supply.

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Datasheet preview – WM7236E

Datasheet Details

Part number WM7236E
Manufacturer Cirrus Logic
File Size 687.29 KB
Description Low Power Bottom Port Digital Silicon Microphone
Datasheet download datasheet WM7236E Datasheet
Additional preview pages of the WM7236E datasheet.

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Full PDF Text Transcription

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WM7236E Low Power Bottom Port Digital Silicon Microphone DESCRIPTION The WM7236 is a low-profile digital silicon microphone, optimised for use with low-power ‘Always-on’ voice control applications, such as Cirrus Logic® SoundClear™ software. The WM7236 supports two operational modes, selected according to the applied clock frequency. ‘Voice’ mode provides low current consumption, and sufficient SNR performance for speech recognition algorithms. ‘Hi-Fi Record’ mode offers wide dynamic range, and classleading THD performance. Operation in the ultrasonic band is also supported at high clock frequencies. The WM7236 incorporates Cirrus Logic proprietary CMOS/MEMS membrane technology, offering high reliability and high performance in a miniature, low-profile package.
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