AC coupling circuit with hybrid switches
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United States of America Patent
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Jan 27, 2015
Grant Date -
Sep 18, 2014
app pub date -
May 6, 2013
filing date -
Mar 15, 2013
priority date (Note) -
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Abstract
A coupling apparatus having a first branch and a second branch is disclosed. The first branch generally comprises (A) a first switch group configured to connect an input signal to an output node through a first capacitor, and (B) second switch group configured to connect either (i) a second signal, or (ii) a ground voltage, to the output node through a second capacitor. The second branch generally comprises (A) a third switch group configured to connect the input signal to the output node through a third capacitor, and (B) a fourth switch group configured to connect either (i) the second signal, or (ii) the ground voltage, to the output node through a fourth capacitor.
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