An ultra compact differentially tuned 6 GHz CMOS LC VCO with dynamic common-mode feedback

被引：20
|
作者：
Soltanian, Babak [1 ]
Ainspan, Herschel [2 ]
Rhee, Woogeun [2 ]
Friedman, Daniel [2 ]
Kinget, Peter [1 ]
机构：
[1] Columbia Univ, New York, NY 10027 USA
[2] IBM Corp, TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA
来源：
PROCEEDINGS OF THE IEEE 2006 CUSTOM INTEGRATED CIRCUITS CONFERENCE | 2006年
关键词：
D O I：
10.1109/CICC.2006.320877
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A fully integrated 0.024mm(2) differentially tuned 6GHz LC VCO for 6+Gbps high speed serial (HSS) links in a 90nm bulk CMOS is presented. It is smaller than any LC-VCO reported to date at this frequency. Its size is comparable with ring oscillators but it has significantly better phase noise. A circuit technique is introduced to dynamically set the common-mode (CM) voltage of the differential varactor control signals equal to the VCO's CM. Using a differential control a very wide tuning range from 4.5GHz to 7.1GHz (45%) is achieved. The VCO has a measured phase noise of -117.7dBc/Hz at a 3MHz offset from a 5.63GHz carrier while dissipating 14mW from a 1.6V supply.
引用
收藏
页码：671 / 674
页数：4
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