Cornell SPH0644LM4H-1 Microphone

By Knowles 370

Cornell SPH0644LM4H-1 Microphone

Knowles' SPH0644LM4H-1 is a miniature, high-performance, low-power, bottom port silicon digital microphone with single bit PDM output. The SPH0644LM4H-1 consists of an acoustic sensor, a low noise input buffer, and a sigma-delta modulator. It is made for portable electronic devices where excellent wideband audio performance and RF immunity are required.

  • Low distortion / high AOP
  • High SNR
  • Low current consumption in low power mode
  • RF shielded
  • Sensitivity matching for multiple mic designs
  • Supports dual multiplexed channels
  • Multiple modes (sleep, low-power, normal)
  • Far-field voice UI
  • Barge-in
  • Beamforming and phase patching
  • Smart speakers
  • Portable electronics
  • Cellphones, laptops, and tablets

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