Optimization of ring oscillators
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2013 |
| Tipo de documento: | Dissertação |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/10362/11361 |
Resumo: | Dissertação para obtenção do Grau de Mestre em Engenharia Electrotécnica e de Computadores |
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Optimization of ring oscillatorsVCOsRing oscillatorPhase-noiseOptimizationDissertação para obtenção do Grau de Mestre em Engenharia Electrotécnica e de ComputadoresVoltage Controlled Oscillators (VCOs) are from all the building blocks of a PLL, those whose implementation is more critical, since the quality of the signal depends on its performance. The VCOs can be implemented based on LC oscillators or ring oscillators. The ring oscillators, despite of being worst when it comes to manners of phase noise, they are rather used due to lower power consumption, wider tuning range and occupying less area. Despite the fact that VCOs are widely used in last years, their designed is still a problem hard to deal with, since the ring oscillators circuits must satisfy some specifications such as area, power, speed and noise. The work proposed in this thesis aims at the development of an environment for automatic scaling of voltage-controlled oscillators with ring topology. In this work it was considered a design methodology based optimization using an analytical model of the oscillator. The oscillator model is based on the EKV model for the characterization of the transistors so as to ensure its applicability to submicron dimensions technologies. The work took place according to the following phases: - Study of ring oscillators and models proposed in the literature - Evaluation of the limitations of existing models and proposed use of EKV model. - Automatic determination of the parameters of the EKV model for UMC130 technology - Development of an analytic model for characterizing the VCO with predefined delay cell. - Use of optimization techniques for automatic sizing of the VCOsFaculdade de Ciências e TecnologiaFino, Maria HelenaRUNLeal, João Filipe Tapadinhas Puga2014-02-11T10:47:32Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10362/11361enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T03:45:50Zoai:run.unl.pt:10362/11361Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:20:14.411514Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
| dc.title.none.fl_str_mv |
Optimization of ring oscillators |
| title |
Optimization of ring oscillators |
| spellingShingle |
Optimization of ring oscillators Leal, João Filipe Tapadinhas Puga VCOs Ring oscillator Phase-noise Optimization |
| title_short |
Optimization of ring oscillators |
| title_full |
Optimization of ring oscillators |
| title_fullStr |
Optimization of ring oscillators |
| title_full_unstemmed |
Optimization of ring oscillators |
| title_sort |
Optimization of ring oscillators |
| author |
Leal, João Filipe Tapadinhas Puga |
| author_facet |
Leal, João Filipe Tapadinhas Puga |
| author_role |
author |
| dc.contributor.none.fl_str_mv |
Fino, Maria Helena RUN |
| dc.contributor.author.fl_str_mv |
Leal, João Filipe Tapadinhas Puga |
| dc.subject.por.fl_str_mv |
VCOs Ring oscillator Phase-noise Optimization |
| topic |
VCOs Ring oscillator Phase-noise Optimization |
| description |
Dissertação para obtenção do Grau de Mestre em Engenharia Electrotécnica e de Computadores |
| publishDate |
2013 |
| dc.date.none.fl_str_mv |
2013 2013-01-01T00:00:00Z 2014-02-11T10:47:32Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
| format |
masterThesis |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/11361 |
| url |
http://hdl.handle.net/10362/11361 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Faculdade de Ciências e Tecnologia |
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Faculdade de Ciências e Tecnologia |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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