DocumentCode :
418306
Title :
A high-speed low-voltage phase detector for clock recovery from NRZ data
Author :
Centurelli, Francesco ; Pozzoni, Massimo ; Scotti, Giuseppe ; Trifiletti, Alessandro
Author_Institution :
Dipt. di Ingegneria Elettronica, Univ. di Roma La Sapienza, Italy
Volume :
4
fYear :
2004
fDate :
23-26 May 2004
Abstract :
A novel topology of a phase detector for applications in clock recovery systems from NRZ data is presented in this paper. The phase detector operates directly on the data stream, without requiring preprocessing, and behaves like a sampling-type phase detector, providing a sinusoidal phase characteristic. The triple-tail principle is exploited to obtain a circuit topology suitable to low-voltage high-speed applications, and a feedback loop is proposed to compensate for data transition density variation. The phase detector has been used in a clock and data recovery circuit for 10 Gb/s optical communications, and measurements in agreement with SONET specifications are reported.
Keywords :
SONET; network topology; optical communication; phase detectors; synchronisation; 10 Gbit/s; NRZ data; SONET; SONET specification; circuit topology; clock recovery; data recovery circuit; data stream; data transition density variation; feedback loop; optical communication; phase detector; sinusoidal phase properties; triple tail principle; Circuit topology; Clocks; Detectors; Frequency; Optical fiber communication; Optical receivers; Optical signal processing; Phase detection; Phase locked loops; Phase measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
Type :
conf
DOI :
10.1109/ISCAS.2004.1328999
Filename :
1328999
Link To Document :
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