CLOCK GENERATOR INCLUDING A RING OSCILLATOR WITH PRECISE FREQUENCY CONTROL
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United States of America Patent
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Issued Date -
Dec 4, 2008
app pub date -
Dec 17, 2007
filing date -
Dec 15, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A clock generator for providing a desired system clock signal in accordance with an embodiment of the present application includes a ring oscillator operable to provide an oscillator output signal having a first frequency, a divider operable to divide the oscillator output signal by a predetermined divisor and to output the divided signal as the desired system clock signal, a reference device operable to provide a reference signal with a known second frequency and a ratio device operable to provide a ratio value indicative of a relationship between the oscillator output signal and the reference signal, wherein the predetermined divisor of the divider is determined based on the ratio value such that the desired system clock signal has a desired frequency.
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