대한전자공학회논문지 (Journal of the Korean Institute of Telematics and Electronics)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

타이밍 클릭 복원 회로에 사용된 PLL의 최적 파라미터 결정

Optimum Parameter Determination of PLL Used in Timing Clock Recovery Circuit

  • 류흥균 (서울대학교 전자공학과) ;
  • 안수길 (서울대학교 전자공학과)
  • Ryu, Heunggyoon (Dept. of Elec. Eng., Seoul Nat'l Univ.) ;
  • ANN, Souguil (Dept. of Elec. Eng., Seoul Nat'l Univ.)
  • 발행 : 1987.03.01
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초록

The closed-loop transfer function of 2-nd order PLL (phase-looked loop)of which loop filter has active-lag 1-st order is found. Considering the three criteria of system performance: the transient response time of the circuit, noise bandwidth by the linear analysis and stability which uses root-locus method, the optimum value of damping factor is 1.0 and the natural frequency which depends upon the signal frequency can be determined after consideration of the trade-off relationship between the transient response time and the noise bandwidth.

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