SiSonic™ Automotive Microphones

Introducing Knowles' Automotive-Grade SiSonic™ MEMS Microphones

Raising Standards of In-Cabin Audio

Knowles announces availability of two new SiSonic MEMS microphones for automotive applications: SPH1878 and SPH9855. The new microphones are engineered to a higher standard of quality and supply assurance to support the increasing demands of the automotive market for hands-free calling, advanced voice assistance and in-cabin noise cancellation for passenger comfort.

The launch of these latest microphones marks Knowles’ further commitment to the automotive market, building on its industry-leading high quality and innovation standards. The microphones follow the AEC-Q103-003 qualification requirements set by the Automotive Electronics Council, the standardization body for establishing standards for reliable, high-quality electronic components for use in the harsh automotive environment.


> Selection Guide


Key Benefits

  • Automotive Quality
  • AEC-Q103-003 Qualification

  • Quieter Commute - Active Noise Cancellation
  • Low LFRO / Phase Distortion

  • Background Noise Reduction
  • ± 0.5dB sensitivity match option

  • Enhanced Call Quality
  • High Dynamic Range


The Knowles Automotive Advantage

  • Turnkey Provider - MEMS, ASIC & Package
  • Dual Multi-National Factories
  • Supply Assurance

  • Dedicated Field Support Team


Product Details




Digital PDM Interface
±0.5dB match upgrade
AOP 132.5dB SPL
SNR 66dB
Wideband Frequency Response
Operational from -40°C to +100°C




Analog (Differential & Single-Ended) Interface
±0.5dB match upgrade
SNR 67dB
Wideband Frequency Response
Operational from -40°C to +85°C


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