{"title":"一种用于认知无线电传感器单元的低功耗宽带数字频率合成器","authors":"Liangge Xu, K. Stadius, J. Ryynänen","doi":"10.1109/ESSCIRC.2009.5325967","DOIUrl":null,"url":null,"abstract":"This paper presents the design of a wide-band digital frequency synthesizer for cognitive radio sensor units. It is based on an all-digital phase-locked loop, and employs a digitally controlled ring oscillator with an LC tank introduced to extend tuning range and reduce power dissipation. Adaptive frequency calibration based on binary search is used for fast frequency settling. Fabricated in a 65-nm CMOS, the frequency synthesizer has an active area of 0.3 mm2 and achieves a frequency tuning range of 2.7 to 6.1 GHz, with power consumption less than 22 mW from a 1.2-V supply. Measured phase noise at 6-GHz frequency is −92 dBc/Hz at 1-MHz offset.","PeriodicalId":258889,"journal":{"name":"2009 Proceedings of ESSCIRC","volume":"37 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"A low-power wide-band digital frequency synthesizer for cognitive radio sensor units\",\"authors\":\"Liangge Xu, K. Stadius, J. Ryynänen\",\"doi\":\"10.1109/ESSCIRC.2009.5325967\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents the design of a wide-band digital frequency synthesizer for cognitive radio sensor units. It is based on an all-digital phase-locked loop, and employs a digitally controlled ring oscillator with an LC tank introduced to extend tuning range and reduce power dissipation. Adaptive frequency calibration based on binary search is used for fast frequency settling. Fabricated in a 65-nm CMOS, the frequency synthesizer has an active area of 0.3 mm2 and achieves a frequency tuning range of 2.7 to 6.1 GHz, with power consumption less than 22 mW from a 1.2-V supply. Measured phase noise at 6-GHz frequency is −92 dBc/Hz at 1-MHz offset.\",\"PeriodicalId\":258889,\"journal\":{\"name\":\"2009 Proceedings of ESSCIRC\",\"volume\":\"37 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-11-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 Proceedings of ESSCIRC\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ESSCIRC.2009.5325967\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 Proceedings of ESSCIRC","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ESSCIRC.2009.5325967","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A low-power wide-band digital frequency synthesizer for cognitive radio sensor units
This paper presents the design of a wide-band digital frequency synthesizer for cognitive radio sensor units. It is based on an all-digital phase-locked loop, and employs a digitally controlled ring oscillator with an LC tank introduced to extend tuning range and reduce power dissipation. Adaptive frequency calibration based on binary search is used for fast frequency settling. Fabricated in a 65-nm CMOS, the frequency synthesizer has an active area of 0.3 mm2 and achieves a frequency tuning range of 2.7 to 6.1 GHz, with power consumption less than 22 mW from a 1.2-V supply. Measured phase noise at 6-GHz frequency is −92 dBc/Hz at 1-MHz offset.
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