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CRYSTAL OSCILLATOR FREQUENCY CALIBRATION

  • US 20090195322A1
  • Filed: 01/31/2008
  • Published: 08/06/2009
  • Est. Priority Date: 01/31/2008
  • Status: Abandoned Application
First Claim
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1. A method for computing coefficients for use in a polynomial approximation of a crystal oscillator frequency, the polynomial comprising a term c0

  • and a coefficient c1

    times a measured temperature T of the crystal oscillator, the method comprising;

    measuring a first temperature T 1 and a corresponding oscillator frequency Fm(T1);

    measuring a second temperature T2 and a corresponding oscillator frequency Fm(T2);

    computing the coefficient c0

    based on Fm(T1); and

    computing the coefficient c1

    based on T1, T2, Fm(T1), and Fm(T2).

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