A novel stability analysis of a PLL for timing recovery in hard disk drives

Author

De Gloria, Alessandro ; Grosso, Daniele ; Olivieri, Mauro ; Restani, Giuseppe

Author_Institution

DIBE, Genoa Univ., Italy

Volume

46

Issue

8

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

1026

Lastpage

1031

Abstract

Timing recovery in hard-disk-drive data transfer is an increasingly critical problem due to the growing data rate to be supported. We present a novel approach to the stability analysis of a high-order digital phase-locked loop (PLL), addressing the specific application. We find the value of the integrating and proportional open-loop gain leading to stable behavior. The analysis was developed in both the digital and analog domains and the obtained results are compared. The stability analysis in the unified transforms domain is also developed, showing that it matches the results obtained with both discrete and continuous-time analysis

Keywords

circuit stability; digital phase locked loops; disc drives; hard discs; network analysis; synchronisation; transfer functions; PLL stable behavior; data transfer; hard disk drives; high-order digital PLL; high-order phase-locked loop; open-loop gain; stability analysis; timing recovery; unified transforms domain; Clocks; Delay; Discrete transforms; Frequency; Hard disks; Magnetic recording; Phase locked loops; Sampling methods; Stability analysis; Timing;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.780384

Filename

780384