Divide-by-N differential phase interpolator
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United States of America Patent
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Jul 22, 2003
Grant Date -
N/A
app pub date -
Mar 12, 2002
filing date -
Mar 12, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A phase interpolator circuit that produces 2.sup.m phase resolution elements using a control signal that has less than m bits. The circuit combines the function of a divide-by-N circuit with a phase interpolation circuit enabled by the use of a higher-speed clock as an input. By performing phase interpolation at a high speed and then slowing down the speed for the subsequent circuits, the phase resolution increases and fewer control bits are required.
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