Journal of the Korean Institute of Telematics and Electronics (대한전자공학회논문지)
- Volume 24 Issue 3
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- Pages.376-380
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- 1987
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- 1016-135X(pISSN)
Optimum Parameter Determination of PLL Used in Timing Clock Recovery Circuit
타이밍 클릭 복원 회로에 사용된 PLL의 최적 파라미터 결정
- Ryu, Heunggyoon (Dept. of Elec. Eng., Seoul Nat'l Univ.) ;
- ANN, Souguil (Dept. of Elec. Eng., Seoul Nat'l Univ.)
- 류흥균 (서울대학교 전자공학과) ;
- 안수길 (서울대학교 전자공학과)
- Published : 1987.03.01
Abstract
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.
Keywords