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jerad.lewis
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re: Analog and digital MEMS microphone design considerations
jerad.lewis   3/29/2013 3:26:25 PM
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WKetel - Thanks for the feedback. I tried to write this article to more generally discuss design differences between analog and digital MEMS microphones, rather than focus on specific parts. For what specs are you specifically interested in seeing more information? Specs for all of Analog Devices' MEMS mics, including those mentioned at the end of the article (ADMP441, ADMP504, ADMP521) can be found on our website at analog.com/mic.

WKetel
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re: Analog and digital MEMS microphone design considerations
WKetel   3/29/2013 2:40:46 PM
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Interesting and useful, although some actual specification information on typical parts would have added even more value to the article.

old account Frank Eory
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re: Analog and digital MEMS microphone design considerations
old account Frank Eory   3/28/2013 3:53:06 PM
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Thanks for this concise explanation of the different types of analog & digital MEMS microphones. Good article.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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