RING OSCILLATOR
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United States of America Patent
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N/A
Issued Date -
Feb 25, 2010
app pub date -
Aug 20, 2008
filing date -
Aug 20, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A ring oscillator is disclosed for generating one or more clock signals. In some embodiments, the ring oscillator includes a first set of n series coupled inverters, a second set of n series coupled inverters, a first reset switch configured to couple a last inverter of the first set of inverters to a first inverter of the second set of inverters and to generate a first signal edge, a second reset switch configured to couple a last inverter of the second set of inverters to a first inverter of the first set of inverters, and a cross-coupling circuit coupled between an output of an inverter of the first set of inverters to a corresponding output of an inverter of the second set of inverters. In some embodiments, 2n clock signals separated in phase by 360°/2n may be generated.
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