A Quad-Mode DCO for Multi-standard Communication Application

被引：0
|
作者：
Jiang, Bo [1 ]
Xia, Tian [1 ]
机构：
[1] Univ Vermont, Sch Engn, Burlington, VT 05405 USA
来源：
2015 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2015年
关键词：
DCO; multi-standard; phase noise; phase locked-loop; tuning range;
D O I：
暂无
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：
This paper proposes a quad-mode digitally controlled oscillator (DCO) for multi-band frequency synthesizer application. The DCO consists of an LC-tank using three inductors and two varactor arrays. Four different inductances and capacitances are obtained by tuning corresponding varactor values, which result in four resonances to increase the frequency tuning range. The simulation results show that the proposed DCO output frequency covers the frequency ranges from 1.5GHz to 2.5GHz and from 4.3GHz to 6.2GHz, which are suitable for multistandard applications.
引用
收藏
页码：2229 / 2232
页数：4
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