Design and analysis of a three-stage voltage-controlled ring oscillator

作     者：雷雪梅 王志功 沈连丰 

作者机构：School of Information Science and Engineer Southeast University College of Electronic Information Engineering Inner Mongolia University 

基　　金：supported by the Research Project of Science and Technology at Universities of Inner Mongolia Autonomous Region(No.NJZY11016) the Innovation Fund of Ministry of Science&Technology for Small and Medium Sized Enterprises,China(No.11C26213211234) 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2013年第34卷第11期

页      码：112-117页

摘      要：This paper describes a large tuning range low phase noise voltage-controlled ring oscillator （ring VCO） based on a different cascade voltage logic delay cell with current-source load to change the current of output node. The method for optimization is presented. Furthermore, the analysis of performance of the proposed ring VCO is confirmed by the measurement results. The three-stage proposed ring VCO was fabricated in the 180-nm CMOS process of SMIC. The measurement results show that the oscillator frequency of the ring VCO is from 0.77O to 5.286 GHz and the phase noise is 97.93 dBc/Hz at an offset of 1 MHz from 5.268 GHz with a total power of 15.1 mW from a 1.8 V supply while occupying only 0.00175 mm2 of the core die area.

主 题 词：large tuning rang ring VCO different cascade voltage logic low phase noise 

学科分类：080904[080904] 0808[工学-自动化类] 0809[工学-计算机类] 08[工学] 0805[工学-能源动力学] 0703[理学-化学类] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1088/1674-4926/34/11/115003

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