A low-phase-noise 900-MHz CMOS ring oscillator with quadrature output

被引：11
|
作者：
Lu, Zhi-Qiang [1 ]
Ma, Jian-Guo
Lai, Feng-Chang
机构：
[1] Harbin Inst Technol, Ctr Microelect, Harbin, HeiLongJiang, Peoples R China
[2] Nanyang Technol Univ, Ctr Integrated Circuits & Syst, Singapore, Singapore
来源：
ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING | 2006年 / 49卷 / 01期
关键词：
ring oscillator; phase noise; tuning range; power consumption;
D O I：
10.1007/s10470-006-8695-3
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A 900-MHz two-stage CMOS voltage controlled ring oscillator (VCRO) with quadrature output is presented. The circuit is designed in a 0.18-um CMOS technology and operated on a 1.8-V supply voltage. The VCRO have a tuning range of 730 MHz to 1.43 GHz and good tuning linearity. Between 0 V and 1.1 V of control voltage, the gain of VCRO is around -620 MHz/V. At 900 MHz, the phase noise of the VCRO is -106.1 dBc/Hz at 600-KHz frequency offset with power consumption of 65.5 mW.
引用
收藏
页码：27 / 30
页数：4
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