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Microphone specs

I'm not familiar with some of the specs in MEMS microphone datasheets. I'm also unclear how some others are calculated. Where can I get more information about what these specs mean and how they're applied?

Parents
  • Application Note AN-1112 (PDF link), "Microphone Specifications Explained", has the information you're looking for. This app note describes microphone specs such as sensitivity, directionality, SNR, dynamic range, equivalent input noise, THD, and PSRR and explains how they specifically apply to microphones. These explanations covers both analog microphones, like the ADMP404, and digital microphones, like the ADMP421.

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  • Application Note AN-1112 (PDF link), "Microphone Specifications Explained", has the information you're looking for. This app note describes microphone specs such as sensitivity, directionality, SNR, dynamic range, equivalent input noise, THD, and PSRR and explains how they specifically apply to microphones. These explanations covers both analog microphones, like the ADMP404, and digital microphones, like the ADMP421.

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