One-hot decoded phase shift prescaler
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United States of America Patent
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May 27, 2003
Grant Date -
N/A
app pub date -
Nov 3, 1999
filing date -
Nov 3, 1999
priority date (Note) -
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Abstract
A prescaler (200) includes a first frequency divider (204, 206) configured to receive an input signal at an input frequency. The prescaler further includes a phase rotator (208) coupled to the first frequency divider to produce a plurality of signal phases in response to the input signal. A frequency control circuit (214) is configured as a one-hot decoder to select one signal phase of the plurality of signal phases. The one-hot decoder provides maximum speed of operation of the prescaler by eliminating decoding of the feedback signal.
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