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Crystal oscillator emulator

  • US 20070176690A1
  • Filed: 01/04/2007
  • Published: 08/02/2007
  • Est. Priority Date: 10/15/2002
  • Status: Active Grant
First Claim
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1. A crystal oscillator emulator integrated circuit, comprising:

  • a first temperature sensor that senses a first temperature of said integrated circuit;

    memory that stores calibration parameters and that selects at least one of said calibration parameters based on said first temperature;

    a semiconductor oscillator that generates an output signal having a frequency that is based on said calibration parameters; and

    an adaptive calibration circuit that adaptively adjusts a calibration approach for generating said calibration parameters based on a number of temperature test points input thereto.

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