Calibration of oscillator devices
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United States of America Patent
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Mar 6, 2007
Grant Date -
Nov 11, 2004
app pub date -
Sep 30, 2003
filing date -
May 2, 2003
priority date (Note) -
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Abstract
A clock device having a resonating device such as a crystal of SAW supplying a controllable oscillator such as a digitally controlled oscillator is calibrated by supplying a calibration clock. A phase-locked loop is utilized to generate one or more correction factors causing the PLL to lock to the calibration clock. The one or more correction factors are then stored in non-volatile memory.
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