Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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A Study on Phase-Noise and Jitter due to the Power Supply Noise of the CMOS Ring Oscillator

CMOS 링발진기의 전원 잡음에 의한 위상잡음과 Jitter 연구

  • 박세훈 (안동대학교 전자정보산업학부)
  • Published : 2006.02.01
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Abstract

Models for the phase noise and jitter of the ring oscillator with the power supply noise are suggested and verified by simulations. The power supply noise is converted into the phase-noise by the narrow band phase modulation. The phase-noise appears as sideband frequencies apart from the center frequency of the ring oscillator as much as the frequency of the power supply noise. A jitter model describing the linear relation of jitter with the amplitude of the power supply noise is suggested and verified by simulation.

전원 잡음에 의한 링발진기의 위상잡음과 jitter의 모델을 제시하고 시뮬레이션을 수행하여 모델의 타당성을 확인하였다. 링발진기의 전원 잡음은 협대역 위상변조에 의해 중심 주파수 양측면에 잡음 주파수만큼 간격을 두고 출력 잡음 신호가 나타나는 위상잡음으로 나타났다. 또한 전원 잡음에 의한 jitter의 선형 모델을 제시하였고, 시뮬레이션에 의해 jitter가 잡음 진폭의 크기에 비례하여 발생하는 것을 확인하였다.

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References

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