{"id":"https://openalex.org/W2198524127","doi":"https://doi.org/10.1109/norchip.2015.7364412","title":"Tracking PVT variations of Pulse Width Controlled PLL using variable-length ring oscillator","display_name":"Tracking PVT variations of Pulse Width Controlled PLL using variable-length ring oscillator","publication_year":2015,"publication_date":"2015-10-01","ids":{"openalex":"https://openalex.org/W2198524127","doi":"https://doi.org/10.1109/norchip.2015.7364412","mag":"2198524127"},"language":"en","primary_location":{"id":"doi:10.1109/norchip.2015.7364412","is_oa":false,"landing_page_url":"https://doi.org/10.1109/norchip.2015.7364412","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 Nordic Circuits and Systems Conference (NORCAS): NORCHIP &amp; International Symposium on System-on-Chip (SoC)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5080338171","display_name":"Takashi Toi","orcid":"https://orcid.org/0000-0002-0197-9447"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Takashi Toi","raw_affiliation_strings":["Dept. of Electronic Engineering, The University of Tokyo"],"affiliations":[{"raw_affiliation_string":"Dept. of Electronic Engineering, The University of Tokyo","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071803491","display_name":"Toru Nakura","orcid":"https://orcid.org/0000-0001-5945-3918"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toru Nakura","raw_affiliation_strings":["VLSI Design and Education Center (VDEC), The University of Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"VLSI Design and Education Center (VDEC), The University of Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007028121","display_name":"Tetsuya Iizuka","orcid":"https://orcid.org/0000-0002-1512-4714"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tetsuya Iizuka","raw_affiliation_strings":["VLSI Design and Education Center (VDEC), The University of Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"VLSI Design and Education Center (VDEC), The University of Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5028680447","display_name":"Kunihiro Asada","orcid":"https://orcid.org/0000-0002-1150-0241"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kunihiro Asada","raw_affiliation_strings":["Dept. of Electronic Engineering, The University of Tokyo"],"affiliations":[{"raw_affiliation_string":"Dept. of Electronic Engineering, The University of Tokyo","institution_ids":["https://openalex.org/I74801974"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5080338171"],"corresponding_institution_ids":["https://openalex.org/I74801974"],"apc_list":null,"apc_paid":null,"fwci":0.3946,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.67697151,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11417","display_name":"Advancements in PLL and VCO Technologies","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11417","display_name":"Advancements in PLL and VCO Technologies","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.9952999949455261,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/ring-oscillator","display_name":"Ring oscillator","score":0.8780637979507446},{"id":"https://openalex.org/keywords/jitter","display_name":"Jitter","score":0.7721033692359924},{"id":"https://openalex.org/keywords/phase-locked-loop","display_name":"Phase-locked loop","score":0.6605103015899658},{"id":"https://openalex.org/keywords/delay-line-oscillator","display_name":"Delay line oscillator","score":0.6055776476860046},{"id":"https://openalex.org/keywords/chip","display_name":"Chip","score":0.5129589438438416},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.4931316077709198},{"id":"https://openalex.org/keywords/ring","display_name":"Ring (chemistry)","score":0.4834917187690735},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.45674318075180054},{"id":"https://openalex.org/keywords/voltage-controlled-oscillator","display_name":"Voltage-controlled oscillator","score":0.45061954855918884},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4187874495983124},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.3495067358016968},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3402957022190094},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3202657103538513},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.2620316445827484},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.18247345089912415},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12733721733093262},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.07060876488685608}],"concepts":[{"id":"https://openalex.org/C104111718","wikidata":"https://www.wikidata.org/wiki/Q2153973","display_name":"Ring oscillator","level":3,"score":0.8780637979507446},{"id":"https://openalex.org/C134652429","wikidata":"https://www.wikidata.org/wiki/Q1052698","display_name":"Jitter","level":2,"score":0.7721033692359924},{"id":"https://openalex.org/C12707504","wikidata":"https://www.wikidata.org/wiki/Q52637","display_name":"Phase-locked loop","level":3,"score":0.6605103015899658},{"id":"https://openalex.org/C26907483","wikidata":"https://www.wikidata.org/wiki/Q5253479","display_name":"Delay line oscillator","level":4,"score":0.6055776476860046},{"id":"https://openalex.org/C165005293","wikidata":"https://www.wikidata.org/wiki/Q1074500","display_name":"Chip","level":2,"score":0.5129589438438416},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.4931316077709198},{"id":"https://openalex.org/C2780378348","wikidata":"https://www.wikidata.org/wiki/Q25351438","display_name":"Ring (chemistry)","level":2,"score":0.4834917187690735},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.45674318075180054},{"id":"https://openalex.org/C5291336","wikidata":"https://www.wikidata.org/wiki/Q852341","display_name":"Voltage-controlled oscillator","level":3,"score":0.45061954855918884},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4187874495983124},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.3495067358016968},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3402957022190094},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3202657103538513},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.2620316445827484},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.18247345089912415},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12733721733093262},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.07060876488685608},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C19417346","wikidata":"https://www.wikidata.org/wiki/Q7922","display_name":"Pedagogy","level":1,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/norchip.2015.7364412","is_oa":false,"landing_page_url":"https://doi.org/10.1109/norchip.2015.7364412","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 Nordic Circuits and Systems Conference (NORCAS): NORCHIP &amp; International Symposium on System-on-Chip (SoC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8100000023841858,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320309545","display_name":"Synopsys","ror":"https://ror.org/013by2m91"},{"id":"https://openalex.org/F4320322832","display_name":"University of Tokyo","ror":"https://ror.org/057zh3y96"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1963906983","https://openalex.org/W2071216274","https://openalex.org/W2084208879","https://openalex.org/W2127604288","https://openalex.org/W2163630970"],"related_works":["https://openalex.org/W2976219355","https://openalex.org/W1994021281","https://openalex.org/W2139484866","https://openalex.org/W2089131288","https://openalex.org/W1600405202","https://openalex.org/W1486070987","https://openalex.org/W1557347312","https://openalex.org/W4384129951","https://openalex.org/W4384502435","https://openalex.org/W4200332348"],"abstract_inverted_index":{"This":[0],"paper":[1],"presents":[2],"a":[3,9,54,62,69,90,109],"PWPLL":[4,55,60],"(Pulse-Width":[5],"Controlled":[6],"PLL)":[7],"using":[8,61],"variable-length":[10,63],"ring":[11,25,64],"oscillator":[12,26,65],"for":[13,53],"autonomously":[14],"tracking":[15],"PVT":[16],"(Process,":[17],"Voltage":[18],"and":[19,29,36,42,93],"Temperature)":[20],"variations.":[21],"We":[22],"fix":[23],"the":[24,30,33,37,44,49,77,86],"control":[27],"code":[28],"numbers":[31],"of":[32,51,76,85],"reference":[34],"CLKs":[35,39],"feedback":[38],"are":[40],"compared,":[41],"then":[43],"additional":[45],"Tracking":[46],"Circuits":[47],"switch":[48],"number":[50],"stages":[52],"to":[56],"be":[57],"locked.":[58],"The":[59,73],"is":[66],"implemented":[67],"in":[68],"180nm":[70],"CMOS":[71],"process.":[72],"measurement":[74],"results":[75],"prototype":[78],"chip":[79],"show":[80],"it":[81],"achieves":[82],"25%":[83],"increase":[84],"lock":[87],"range":[88],"from":[89],"conventional":[91],"PWPLL,":[92],"0.0265mm":[94],"<sup":[95],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[96],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[97],"layout":[98],"area":[99],"along":[100],"with":[101,112],"2.99ps":[102],"rms":[103],"jitter":[104],"while":[105],"consuming":[106],"4.79mW":[107],"under":[108],"1.8V":[110],"supply":[111],"600MHz":[113],"output":[114],"frequency.":[115]},"counts_by_year":[{"year":2017,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
