Voltage Controlled Oscillator (VCO) for Digital Applications

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the voltage controlled oscillator is an important component of a Digital Phase-Locked Loops (DPLL). If the output oscillation is not linearly related to the control voltage the non linear gain can reduce the quality of the performance of the DPLL. The output of the phase-locked loop can jitter or may not lock at all. Here a CMOS VCO SPICE simulation with non linear gain and the linearized version.

  • Free
  • Advanced
  • 51-100
  • LTspice
  • IV
  • No
  • VCO output VCO schematic witn non linear gain parametric analysis FFT of parametric analysis shows non linear VCO gain VCO schematic with linear gain FFT of parametric analysis with linearized VCO gain

1 review for Voltage Controlled Oscillator (VCO) for Digital Applications

  1. mbielman

    Would like to try this but not sure how to “install” it. Fairly new LT spice user. What do I do? thx

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