Low frequency clock generation
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United States of America Patent
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Nov 15, 2011
Grant Date -
Mar 22, 2007
app pub date -
Sep 21, 2005
filing date -
Sep 21, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A first and a second resonator are fabricated monolithically adjacent to one another. The first resonator is the reference resonator. The resonant frequency of the second resonator is offset by a difference frequency Fo from the first resonator. Each resonator is included within an oscillator. A mixer receives the output of both oscillators. A low pass filter receives the mixer output and generates a clock signal whose frequency is equal to the difference frequency Fo.
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