Differential signal termination circuit
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United States of America Patent
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Jun 4, 2013
Grant Date -
Jun 14, 2012
app pub date -
Dec 8, 2011
filing date -
Dec 10, 2010
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Abstract
A multi-mode differential termination circuit has a pair of differential input terminals for receiving external differential signals, a pair of series-connected load elements coupled between said differential input terminals, and an analog interface terminal coupled a common junction point of said load elements. A bias circuit is coupled to the common junction point of the load elements for selectively applying a bias voltage thereto in response to a digital control signal. A control input receives the digital control signal to activate the bias circuit.
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