| 一种三阶环形压控振荡器的分析设计 |
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| 作者姓名： | Lei Xuemei Wang Zhigong Shen Lianfeng |
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| 作者单位： | School of Information Science and Engineer, Southeast University;College of Electronic Information Engineering, Inner Mongolia University |
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| 基金项目： | 科技部中小企业创新基金（11c26213211234）；内蒙古自治区高等学校科学技术研究项目（NJZY11016） |
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| 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 0.770 to5.286 GHz and the phase noise is 97.93 dBc/Hz at an offset of 1 MHz from 5.268 GHz with a total power of15.1 mW from a 1.8 V supply while occupying only 0.00175 mm2of the core die area.
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| 关 键 词： | large tuning rang ring VCO different cascade voltage logic low phase noise |
| 修稿时间： | 6/8/2013 12:00:00 AM |
Design and analysis of a three-stage voltage-controlled ring oscillator |
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| Lei Xuemei,Wang Zhigong,Shen Lianfeng.Design and analysis of a three-stage voltage-controlled ring oscillator[J].Chinese Journal of Semiconductors,2013,34(11):115003-6. |
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| Authors: | Lei Xuemei Wang Zhigong and Shen Lianfeng |
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| Affiliation: | School of Information Science and Engineer, Southeast University, Nanjing 210096, China;College of Electronic Information Engineering, Inner Mongolia University, Hohhot 010010, China;School of Information Science and Engineer, Southeast University, Nanjing 210096, China;;School of Information Science and Engineer, Southeast University, Nanjing 210096, China; |
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| Abstract: | 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 0.770 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. |
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| Keywords: | large tuning rang ring VCO different cascade voltage logic low phase noise |
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