{"title":"Voltage-Boosted Synchronizers","authors":"Yaoqiang Li, P. Chuang, A. Kennings, M. Sachdev","doi":"10.1145/2742060.2742075","DOIUrl":null,"url":null,"abstract":"With a specified Mean Timing Between Failure (MTBF), the metastability resolution time of synchronizers possibly constrains the system performance. To enhance metastability resolution time under single low-voltage supply environments, Voltage-Boosted Synchronizers (VBSs) consisting of a basic minimum-sized Jamb latch and a switched-capacitor-based charge pump are proposed. The capacitor of the charge pump is sized 13 times the area of the Jamb latch. Two powering strategies of the charge pump, namely Metastability-driven VBS (MVBS) and Clock-driven VBS (CVBS), are proposed. For a 1-year MTBF specification, MVBS and CVBS show 2.0-2.7 and 5.1-9.8 times the performance improvement over the basic Jamb latch, respectively, without incurring large power consumption.","PeriodicalId":255133,"journal":{"name":"Proceedings of the 25th edition on Great Lakes Symposium on VLSI","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 25th edition on Great Lakes Symposium on VLSI","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/2742060.2742075","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
With a specified Mean Timing Between Failure (MTBF), the metastability resolution time of synchronizers possibly constrains the system performance. To enhance metastability resolution time under single low-voltage supply environments, Voltage-Boosted Synchronizers (VBSs) consisting of a basic minimum-sized Jamb latch and a switched-capacitor-based charge pump are proposed. The capacitor of the charge pump is sized 13 times the area of the Jamb latch. Two powering strategies of the charge pump, namely Metastability-driven VBS (MVBS) and Clock-driven VBS (CVBS), are proposed. For a 1-year MTBF specification, MVBS and CVBS show 2.0-2.7 and 5.1-9.8 times the performance improvement over the basic Jamb latch, respectively, without incurring large power consumption.
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