Dual edge-triggered phase detector and phase locked loop using same
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United States of America Patent
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Mar 6, 2001
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N/A
app pub date -
Mar 12, 1999
filing date -
Mar 13, 1998
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Abstract
There is disclosed a phase detector which triggers on both rising and falling edges of an input pulse signal. This effectively doubles the frequency of the input signal. When the phase detector is used in a phase locked loop, the doubled frequency means that a lower division ratio can be used, thereby reducing any noise contribution introduced thereby.
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