{"title":"A 0.18-µm 10-GHz CMOS ring oscillator for optical transceivers","authors":"H. Liu, W. Goh, L. Siek","doi":"10.1109/ISCAS.2005.1464890","DOIUrl":null,"url":null,"abstract":"This paper presents a three-stage 1.8-V 10-GHz ring oscillator, implemented using the 0.18-/spl mu/m digital CMOS technology. The circuit utilizes the feedforward technique at the delay cells and positive feedback provided by a cross-coupled nMOS pair in each delay cell to boost the operation speed of the oscillator. The output frequency ranges from 10.1 to 8.4 GHz with control voltages of 0 to 1.5 V. The simulated result of the phase noise is -99.9 dBc/Hz at 1-MHz offset from the center frequency of 9.2 GHz. The circuit draws 35 mA and 22 mA from the 1.8-V supply when running at the highest and lowest frequencies, respectively.","PeriodicalId":91083,"journal":{"name":"IEEE International Symposium on Circuits and Systems proceedings. IEEE International Symposium on Circuits and Systems","volume":"22 1","pages":"1525-1528"},"PeriodicalIF":0.0000,"publicationDate":"2005-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"24","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE International Symposium on Circuits and Systems proceedings. IEEE International Symposium on Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISCAS.2005.1464890","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 24
Abstract
This paper presents a three-stage 1.8-V 10-GHz ring oscillator, implemented using the 0.18-/spl mu/m digital CMOS technology. The circuit utilizes the feedforward technique at the delay cells and positive feedback provided by a cross-coupled nMOS pair in each delay cell to boost the operation speed of the oscillator. The output frequency ranges from 10.1 to 8.4 GHz with control voltages of 0 to 1.5 V. The simulated result of the phase noise is -99.9 dBc/Hz at 1-MHz offset from the center frequency of 9.2 GHz. The circuit draws 35 mA and 22 mA from the 1.8-V supply when running at the highest and lowest frequencies, respectively.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
