Title
Clock And Data Recovery Ic For 40-Gb/S Fiber-Optic Receiver
Abstract
The integrated clock and data recovery (CDR) circuit is a key element for broad-band optical communication systems at 40 Gb/s. We report a 40-Gb/s CDR fabricated in indium-phosphide heterojunction bipolar transistor (InP HBT) technology using a robust architecture of a phase-locked loop (PLL) with a digital early-late phase detector. The faster InP HBT technology allows the digital phase detector to operate at the full data rate of 40 Gb/s. This, in turn, reduces the circuit complexity (transistor count) and. the voltage-controlled oscillator (VCO) requirements. The IC includes an on-chip LC VCO, on-chip clock dividers to drive an external demultiplexer, and low-frequency PLL control loop and. on-chip limiting amplifier buffers for the data and clock I/O. To our knowledge, this is the first demonstration of a mixed-signal IC operating at the clock rate of 40 GHz. We also describe the chip architecture and measurement results.
Year
DOI
Venue
2002
10.1109/JSSC.2002.801186
IEEE JOURNAL OF SOLID-STATE CIRCUITS
Keywords
DocType
Volume
clock and data recovery, CDR, fiber-optic communication receiver, InPHBT, limiting amplifier, phase detector, VCO
Journal
37
Issue
ISSN
Citations 
9
0018-9200
3
PageRank 
References 
Authors
0.60
0
12
Name
Order
Citations
PageRank
George Georgiou130.93
Y. Baeyens2237.08
Young-Kai Chen37016.40
A. H. Gnauck4226.29
c gropper530.60
P. Paschke681.57
r pullela7153.29
m reinhold830.60
C. Dorschky9169.08
j p mattia1030.60
t w von mohrenfels1130.60
c schulien1230.60