Analysis of the effect of PFD sampling on charge-pump PLL stability

D. Dhar; P.T.M.  van Zeijl; D. Milosevic; H. Gao; P.G.M. Baltus

doi:10.1109/ISCAS.2018.8351180

Analysis of the effect of PFD sampling on charge-pump PLL stability

D. Dhar, P.T.M. van Zeijl, D. Milosevic, H. Gao, P.G.M. Baltus

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › Academic › peer review

5 Citaten (Scopus)

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The sampling nature of the phase-frequency detector (PFD) degrades the stability of the charge-pump phase-locked loop (CPPLL). This paper analyzes the effect of the PFD sampling on the CPPLL stability by using z-transform. The PFD is modeled as a zero-order hold to perform the z-domain analysis. The stability boundary predicted by the analysis is accurate and verified by simulations using Cadence Spectre. In addition, a physical interpretation of how sampling destabilizes an otherwise stable continuous feedback system is provided in time domain, which brings valuable insight into the operation of sampled feedback systems like CPPLL.

Originele taal-2	Engels
Titel	2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings
Plaats van productie	Piscataway
Uitgeverij	Institute of Electrical and Electronics Engineers
Pagina's	1-5
Aantal pagina's	5
ISBN van elektronische versie	978-1-5386-4881-0
ISBN van geprinte versie	978-1-5386-4882-7
DOI's	https://doi.org/10.1109/ISCAS.2018.8351180
Status	Gepubliceerd - 26 apr. 2018
Evenement	2018 IEEE International Symposium on Circuits and Systems (ISCAS 2018) - Florence Conference Center, Florence, Italië Duur: 27 mei 2018 → 30 mei 2018 https://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=8334884

Congres

Congres	2018 IEEE International Symposium on Circuits and Systems (ISCAS 2018)
Verkorte titel	ISCAS 2018
Land/Regio	Italië
Stad	Florence
Periode	27/05/18 → 30/05/18
Internet adres	https://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=8334884

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ACKNOWLEDGMENT We would like to sincerely thank STW financial assistance to our project.

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title = "Analysis of the effect of PFD sampling on charge-pump PLL stability",

abstract = "The sampling nature of the phase-frequency detector (PFD) degrades the stability of the charge-pump phase-locked loop (CPPLL). This paper analyzes the effect of the PFD sampling on the CPPLL stability by using z-transform. The PFD is modeled as a zero-order hold to perform the z-domain analysis. The stability boundary predicted by the analysis is accurate and verified by simulations using Cadence Spectre. In addition, a physical interpretation of how sampling destabilizes an otherwise stable continuous feedback system is provided in time domain, which brings valuable insight into the operation of sampled feedback systems like CPPLL.",

keywords = "Phase-frequency detector, phase-locked loop, sampling, zero-order hold",

author = "D. Dhar and {van Zeijl}, P.T.M. and D. Milosevic and H. Gao and P.G.M. Baltus",

year = "2018",

month = apr,

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doi = "10.1109/ISCAS.2018.8351180",

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address = "United States",

note = "2018 IEEE International Symposium on Circuits and Systems (ISCAS 2018), ISCAS 2018 ; Conference date: 27-05-2018 Through 30-05-2018",

url = "https://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=8334884",

}

Dhar, D , van Zeijl, PTM , Milosevic, D, Gao, H & Baltus, PGM 2018, Analysis of the effect of PFD sampling on charge-pump PLL stability. in 2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings., 8351180, Institute of Electrical and Electronics Engineers, Piscataway, blz. 1-5, 2018 IEEE International Symposium on Circuits and Systems (ISCAS 2018), Florence, Italië, 27/05/18. https://doi.org/10.1109/ISCAS.2018.8351180

Analysis of the effect of PFD sampling on charge-pump PLL stability. / Dhar, D.; van Zeijl, P.T.M. ; Milosevic, D. et al.
2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings. Piscataway: Institute of Electrical and Electronics Engineers, 2018. blz. 1-5 8351180.

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/Congresprocedure › Conferentiebijdrage › Academic › peer review

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T1 - Analysis of the effect of PFD sampling on charge-pump PLL stability

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AU - van Zeijl, P.T.M.

AU - Milosevic, D.

AU - Gao, H.

AU - Baltus, P.G.M.

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N2 - The sampling nature of the phase-frequency detector (PFD) degrades the stability of the charge-pump phase-locked loop (CPPLL). This paper analyzes the effect of the PFD sampling on the CPPLL stability by using z-transform. The PFD is modeled as a zero-order hold to perform the z-domain analysis. The stability boundary predicted by the analysis is accurate and verified by simulations using Cadence Spectre. In addition, a physical interpretation of how sampling destabilizes an otherwise stable continuous feedback system is provided in time domain, which brings valuable insight into the operation of sampled feedback systems like CPPLL.

AB - The sampling nature of the phase-frequency detector (PFD) degrades the stability of the charge-pump phase-locked loop (CPPLL). This paper analyzes the effect of the PFD sampling on the CPPLL stability by using z-transform. The PFD is modeled as a zero-order hold to perform the z-domain analysis. The stability boundary predicted by the analysis is accurate and verified by simulations using Cadence Spectre. In addition, a physical interpretation of how sampling destabilizes an otherwise stable continuous feedback system is provided in time domain, which brings valuable insight into the operation of sampled feedback systems like CPPLL.

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Analysis of the effect of PFD sampling on charge-pump PLL stability

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