A 6GHz low-noise quadrature colpitts VCO

被引：0

作者：

Chu, MA ^{[1
]}

Allstot, DJ ^{[1
]}

机构：

[1] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA

来源：

ICECS 2004: 11th IEEE International Conference on Electronics, Circuits and Systems | 2004年

关键词：

phase noise; voltage controlled oscillator; quadrature voltage controlled oscillator;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A 6GHz low-noise quadrature Colpitts VCO is presented. Use of the Colpitts configuration together with a series-injection scheme for quadrature signal generation ensures low phase noise operation. The QVCO achieves a simulated average phase noise of -140.5dBc/Hz at 3MHz offset across a 500MHz tuning range while dissipating 20mW of power. The 500MHz tuning capability is obtained using switched capacitor arrays and accumulation-mode NMOS varactors. The phase error of the QVCO is 0.55 degrees. The figure-of-merit (FOM) and the power-frequency-tuning normalized FOM (PFTN-FOM) are 194dB and -2dB, respectively.

引用

页码：21 / 24

页数：4

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