A Low-Noise Multi-GHz CMOS Multiloop Ring Oscillator With Coarse and Fine Frequency Tuning

被引：63

作者：

Liu, Hai Qi ^{[1
]}

Goh, Wang Ling ^{[1
]}

Sick, Liter ^{[1
]}

Lim, Wei Meng ^{[1
]}

Zhang, Yue Ping ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Ctr Integrated Circuits & Syst, Singapore 639798, Singapore

来源：

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS | 2009年 / 17卷 / 04期

关键词：

CMOS; coarse/fine tuning; gigahertz (GHz); multiloop; phase noise; ring oscillator; voltage-controlled oscillator (VCO); LC-VCO;

D O I：

10.1109/TVLSI.2008.2011206

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A 7-GHz CMOS voltage controlled ring oscillator that employs multiloop technique for frequency boosting is presented in this paper. The circuit permits lower tuning gain through the use of coarse/fine frequency control. The lower tuning gain also translates into a lower sensitivity to the voltage at the control lines. Fabricated in a standard 0.13-mu m CMOS process, the proposed voltage-controlled ring oscillator exhibits a low phase noise of -103.4 dBc/Hz at 1 MHz offset from the center frequency of 7.64 GHz, while consuming a current of 40 mA excluding the buffer.

引用

页码：571 / 577

页数：7

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