Cornell SPH0644LM4H-1 Microphone

Knowles' SPH0644LM4H-1 is a multimode digital bottom port SiSonic™ microphone

Image of Knowles' Cornell SPH0644LM4H-1 MicrophoneKnowles' 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.

Features
  • 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)
Applications
  • Far-field voice UI
  • Barge-in
  • Beamforming and phase patching
  • Smart speakers
  • Portable electronics
  • Cellphones, laptops, and tablets

Cornell SPH0644LM4H-1 Microphone

ImageManufacturer Part NumberDescriptionDirectionFrequency RangeSensitivityAvailable QuantityView Details
CORNELL MIC MULTIMODE DGT BOT PTSPH0644LM4H-1CORNELL MIC MULTIMODE DGT BOT PTOmnidirectional20Hz ~ 10kHz-37dB ±1dB @ 94dB SPL18360 - ImmediateView Details
Published: 2019-04-02