The design and simulations of phase and timing tracking circuits with pre-assured 2nd order digital loop filter

Chien Hsing Liao, Fu Nian Ku, Fu Hao Yeh, Jia Chin Lin, Mu King Tsay

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Phase and timing tracking circuits are always a crucial issue in circuit designs, especially in mobile communications and many other applications which will produce phase shift or timing jitter due to relative activity or environments variations. For keeping track of these crucial changing parameters, a synchronization circuit with 2nd order digital loop is generally applied for its simplicity, flexibility, and fast setting time. In this paper, a typical 2nd order digital loop filter with pre-assured stable convergence triangle from Jury criteria is developed, which can then be directly applied in many circuit designs with phase or timing jitter by simply adjusting two digital loop parameters. The convergence property and the effectiveness of this digital loop filter and its applied circuits with derived recursive formulations are well studied and simulated. This simple and direct scheme can easily tell the designers the stable convergence contours under specific circumstances in the whole design stages.

Original languageEnglish
Title of host publication2011 International Conference on Electrical and Control Engineering, ICECE 2011 - Proceedings
Pages5054-5057
Number of pages4
DOIs
StatePublished - 2011
Event2nd Annual Conference on Electrical and Control Engineering, ICECE 2011 - Yichang, China
Duration: 16 Sep 201118 Sep 2011

Publication series

Name2011 International Conference on Electrical and Control Engineering, ICECE 2011 - Proceedings

Conference

Conference2nd Annual Conference on Electrical and Control Engineering, ICECE 2011
Country/TerritoryChina
CityYichang
Period16/09/1118/09/11

Keywords

  • convergence triangle
  • Phase tracking circuit
  • pre-assured 2nd order digital loop filter
  • Timing tracking circuit

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