Distributed delay-locked-based clock and data recovery systems
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United States of America Patent
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Jun 6, 2006
Grant Date -
Feb 10, 2005
app pub date -
May 28, 2004
filing date -
May 30, 2003
priority date (Note) -
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Abstract
A clock and data recovery system using a distributed variable delay line is provided. The clock and data recovery system can use a delay-locked loop methodology to align a local clock with an incoming data stream. The variable delay line can include a transmission line coupled with a plurality of variable capacitors responsive to a control voltage. The variable delay line can also have a ladder configuration of multiple LC subcircuits each having a variable impedance responsive to a control voltage.
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