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WM7236E - Low Power Bottom Port Digital Silicon Microphone

General 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.

Key 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 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

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.