A 900-MHz 1.5-v CMOS voltage-controlled oscillator using switched resonators with a wide tuning range

被引:30
作者
Li, ZB [1 ]
Kenneth, O
机构
[1] Univ Florida, Silicon Microwave Integrated Circuits & Syst Res, SiMICS, Dept Elect & Comp Engn, Gainesville, FL 32611 USA
[2] Global Commun Devices Inc, N Andover, MA 01845 USA
关键词
CMOS voltage-controlled oscillator; phase noise; switched resonators; tuning range;
D O I
10.1109/LMWC.2003.811054
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 900-MHz fully integrated VCO was fabricated in a 0.18-mum foundry CMOS process. Under 1.5 V power supply, this VCO can be tuned from 667 MHz to 1156 MHz which corresponds to a 53.6% tuning range. The VCO has nearly constant phase noise over the whole tuning frequency, credit to the switched resonators used in this VCO. The phase noise at a 600 kHz offset is -123.1 dBc/Hz at 1125 MHz center frequency and -124.2 dBc/Hz at 667 MHz center frequency.
引用
收藏
页码:137 / 139
页数:3
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