{"title":"A phase-adjustable Delay-Locked Loop utilizing embedded phase interpolation","authors":"Steven Callender, A. Niknejad","doi":"10.1109/RFIC.2011.5940657","DOIUrl":null,"url":null,"abstract":"This paper presents the design of a 1 GHz Delay-Locked Loop (DLL) with embedded phase interpolation. The DLL was designed in a 0.13µm SiGe BiCMOS process and provides a measured single-tap phase range of 50ps (18°) with an average and worst-case phase resolution of 1.36ps (0.49°) and 5ps (1.8°), respectively. This translates to beamsteering resolutions of < 3.5mm in free space when integrated into mm-wave imagers that utilize time-domain beamforming. The DLL has an average output rms-jitter (across all interpolation steps) of 860fs. The DLL consumes 33 mW of power and occupies an area of 0.185mm2.","PeriodicalId":448165,"journal":{"name":"2011 IEEE Radio Frequency Integrated Circuits Symposium","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 IEEE Radio Frequency Integrated Circuits Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RFIC.2011.5940657","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
This paper presents the design of a 1 GHz Delay-Locked Loop (DLL) with embedded phase interpolation. The DLL was designed in a 0.13µm SiGe BiCMOS process and provides a measured single-tap phase range of 50ps (18°) with an average and worst-case phase resolution of 1.36ps (0.49°) and 5ps (1.8°), respectively. This translates to beamsteering resolutions of < 3.5mm in free space when integrated into mm-wave imagers that utilize time-domain beamforming. The DLL has an average output rms-jitter (across all interpolation steps) of 860fs. The DLL consumes 33 mW of power and occupies an area of 0.185mm2.
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