Title
A 10 GHz multiphase LC VCO with a ring capacitive coupling structure
Abstract
A multiphase LC voltage-controlled oscillator(VCO) with a novel capacitive coupling CL ladder filter structure is proposed in this paper and this 10 GHz eight-phase VCO is applied in clock and data recovery(CDR) circuit for 40 Gb/s optical communications system.Compared with the traditional eight-phase oscillator,this capacitive coupling structure can decrease the number of inductors to half and only of four inductors.The VCO is designed and taped out in TSMC 65 nm CMOS technology.Measurement results show the phase noise is 105.95 dBc/Hz at 1MHz offset from a carrier frequency of 10 GHz.The chip area of VCO is 480 μm×700 μm and the VCO core power dissipation is 4.8 mW with the 1.0 V supply voltage.
Year
DOI
Venue
2012
10.1007/s11432-012-4700-x
SCIENCE CHINA Information Sciences
Keywords
Field
DocType
eight-phase,clock and data recovery(cdr),capacitive coupling,voltage controlled oscillator(vco),cl ladder filtering
Electronic filter topology,Telecommunications,Control theory,Voltage,Phase noise,Inductor,CMOS,Voltage-controlled oscillator,dBc,Optoelectronics,Capacitive coupling,Mathematics
Journal
Volume
Issue
ISSN
55
11
1869-1919
Citations 
PageRank 
References 
3
0.55
6
Authors
4
Name
Order
Citations
PageRank
YingMei Chen1243.53
hui wang230.89
shuangchao yan330.55
zhang li4211.26