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Simultaneous multi-effect oscillator compensation using piecewise interdependent polynomials

  • US 10,069,498 B2
  • Filed: 05/30/2017
  • Issued: 09/04/2018
  • Est. Priority Date: 07/01/2016
  • Status: Active Grant
First Claim
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1. A packaged voltage-controlled temperature-compensated crystal oscillator (VCTCXO) comprising:

  • a crystal oscillator configured to output a signal of a particular frequency;

    a temperature sensor configured to measure a temperature of the crystal oscillator;

    a microcontroller configured to generate an internal control voltage signal based at least in part on the temperature and an external control voltage received by the packaged VCTCXO; and

    a combiner configured to combine an internal control voltage and the external control voltage to generate a control voltage, wherein the control voltage is supplied to the crystal oscillator to cause the crystal oscillator to generate the signal of the particular frequency.

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