{"title":"用于高速应用的占空比控制电路","authors":"A. Tajalli, S. Mehrmanesh, S. M. Atarodi","doi":"10.1109/ISCAS.2004.1328311","DOIUrl":null,"url":null,"abstract":"An accurate and programmable CMOS duty-cycle control (DCC) circuit for high-speed applications is discussed. Proposed DCC circuit has a first order transfer function the accuracy of which is just limited by the on-chip device mismatch. Operating at 1GHz frequency, the duty-cycle of the output clock can be tuned between 45 to 60% by changing the charge and discharge currents of a charged-pump circuit (CPC). CPC's current is controlled through five controlling bits. The circuit is designed in a 0.18/spl mu/m CMOS technology and draws 160/spl mu/A from a 1.8V supply with less than 0.3/spl times/LSB error.","PeriodicalId":6445,"journal":{"name":"2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)","volume":"14 1","pages":"I-781"},"PeriodicalIF":0.0000,"publicationDate":"2004-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"A duty cycle control circuit for high speed applications\",\"authors\":\"A. Tajalli, S. Mehrmanesh, S. M. Atarodi\",\"doi\":\"10.1109/ISCAS.2004.1328311\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An accurate and programmable CMOS duty-cycle control (DCC) circuit for high-speed applications is discussed. Proposed DCC circuit has a first order transfer function the accuracy of which is just limited by the on-chip device mismatch. Operating at 1GHz frequency, the duty-cycle of the output clock can be tuned between 45 to 60% by changing the charge and discharge currents of a charged-pump circuit (CPC). CPC's current is controlled through five controlling bits. The circuit is designed in a 0.18/spl mu/m CMOS technology and draws 160/spl mu/A from a 1.8V supply with less than 0.3/spl times/LSB error.\",\"PeriodicalId\":6445,\"journal\":{\"name\":\"2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)\",\"volume\":\"14 1\",\"pages\":\"I-781\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-05-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISCAS.2004.1328311\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISCAS.2004.1328311","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A duty cycle control circuit for high speed applications
An accurate and programmable CMOS duty-cycle control (DCC) circuit for high-speed applications is discussed. Proposed DCC circuit has a first order transfer function the accuracy of which is just limited by the on-chip device mismatch. Operating at 1GHz frequency, the duty-cycle of the output clock can be tuned between 45 to 60% by changing the charge and discharge currents of a charged-pump circuit (CPC). CPC's current is controlled through five controlling bits. The circuit is designed in a 0.18/spl mu/m CMOS technology and draws 160/spl mu/A from a 1.8V supply with less than 0.3/spl times/LSB error.