Programmable leakage current offset for phase locked loop
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United States of America Patent
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-
May 27, 2003
Grant Date -
N/A
app pub date -
Aug 29, 2002
filing date -
Aug 29, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for post-fabrication adjustment of a phase locked loop leakage current is provided. The adjustment system includes an adjustment circuit that adjusts a leakage current offset circuit to compensate for the leakage current of a capacitor in the phase locked loop. The capacitor connects to a control voltage of the phase locked loop. Such control of the leakage current in the phase locked loop allows a designer to achieve a desired phase locked loop operating characteristic after the phase locked loop has been fabricated.
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