A wide-band low noise quadrature CMOS VCO

被引：3
|
作者：
Cho, Yi-Hsien [1 ]
Tsai, Ming-Da [1 ]
Chang, Ying-Tang [1 ]
Wang, Huei [1 ]
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10764, Taiwan
来源：
2005 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE, PROCEEDINGS OF TECHNICAL PAPERS | 2005年
关键词：
D O I：
10.1109/ASSCC.2005.251731
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 wide tuning range and low noise CMOS quadrature voltage-controlled oscillator (QVCO) using 0.18-mu m 1P6M standard CMOS process is proposed in this paper. The VCO is realized employing switchable capacitors, so as to work in dual band and increase operation frequency. Moreover, the dual band operation could decrease the tuning sensitivity in each band and hence lower the phase noise. The VCO operates from 5.14 to 6.3 GHz with more than 20% tuning range. The measured phase noise at 1-MHz offset is 120.2 dBc/Hz; at 5.5 GHz with VCO cores drawing total current of 8 mA at 1.8 V supply and the output power is about 1.5 dBm.
引用
收藏
页码：325 / 328
页数：4
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