Jitter characteristics of an optical repeater module using dpll

Autor:	Mikio Takahara, Kenta Noda
Rok vydání:	1990
Předmět:	Repeater Engineering Computer Networks and Communications business.industry Clock rate Phase (waves) Filter (signal processing) Random walk Loop (topology) DPLL algorithm Electronic engineering Electrical and Electronic Engineering business Jitter
Zdroj:	Electronics and Communications in Japan (Part I: Communications). 73:55-64
ISSN:	1520-6424 8756-6621
DOI:	10.1002/ecja.4410731206
Popis:	Initially, jitter characteristics of the multistage connection of optical repeater modules using the digital phase-locked loop (DPLL) for the timing extraction are examined. Then some problems to be solved are pointed out from the results. Next, a system using new modules with a nonresponse period to improve the jitter characteristics of the module is proposed. It is shown that the nonresponse period is nearly equal to one divided period (TDO). The proposed scheme shows much better jitter suppression characteristics than some other systems, e.g., the clock frequency duplication system, the phase correcting-restriction system and the system using a random walk filter. Finally, experimental jitter suppression characteristics of multistage connection of new modules with a nonresponse period of 0, 0,5TDO and 1.0TDO, respectively, are shown. These characteristics show a good agreement with simulated results. It is confirmed that the system using DPLL with a 1.0TDO nonresponse period shows the most satisfactory result.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::106076f1b67faaa1925b7a899888f877 https://doi.org/10.1002/ecja.4410731206 Zobrazit plný text záznamu Plný text ve formátu PDF