On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's

A unified systematic approach to the design of voltage-controlled oscillators using only operational transconductance amplifiers (OTA's) and capacitors is discussed in this paper. Two classical oscillator models, i.e., quadrature and bandpass-based, are employed to generate several oscillator s...

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Autores: Rodríguez Vázquez, Ángel Benito, Linares Barranco, Bernabé, Huertas Díaz, José Luis, Sánchez Sinencio, Edgar
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:1990
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/94937
Acceso en línea:https://hdl.handle.net/11441/94937
https://doi.org/10.1109/31.45712
Access Level:acceso abierto
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spelling On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA'sRodríguez Vázquez, Ángel BenitoLinares Barranco, BernabéHuertas Díaz, José LuisSánchez Sinencio, EdgarA unified systematic approach to the design of voltage-controlled oscillators using only operational transconductance amplifiers (OTA's) and capacitors is discussed in this paper. Two classical oscillator models, i.e., quadrature and bandpass-based, are employed to generate several oscillator structures. They are very appropriate for silicon monolithic implementations. The resulting oscillation frequencies are proportional to the transconductance of the OTA and this makes the reported structures well-suited for building voltage controlled oscillators (VCO's). Amplitude stabilization circuits using both automatic gain control (AGC) mechanisms and limitation schemes are presented which are compatible with the transconductance amplifier capacitor oscillator (TACO). Experimental results from bipolar breadboard and CMOS IC prototypes are included showing good potential of OTA-based oscillators for high frequency VCO operation.Comisión Interministerial de Ciencia y Tecnología ME87-0004Institute of Electrical and Electronics EngineersElectrónica y Electromagnetismo1990info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/94937https://doi.org/10.1109/31.45712reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésIEEE Transactions on Circuits and Systems, 37 (2), 198-211.ME87-0004https://doi.org/10.1109/31.45712info:eu-repo/semantics/openAccessoai:idus.us.es:11441/949372026-06-17T12:51:07Z
dc.title.none.fl_str_mv On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
title On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
spellingShingle On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
Rodríguez Vázquez, Ángel Benito
title_short On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
title_full On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
title_fullStr On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
title_full_unstemmed On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
title_sort On the Design of Voltage-Controlled Sinusoidal Oscillators Using OTA's
dc.creator.none.fl_str_mv Rodríguez Vázquez, Ángel Benito
Linares Barranco, Bernabé
Huertas Díaz, José Luis
Sánchez Sinencio, Edgar
author Rodríguez Vázquez, Ángel Benito
author_facet Rodríguez Vázquez, Ángel Benito
Linares Barranco, Bernabé
Huertas Díaz, José Luis
Sánchez Sinencio, Edgar
author_role author
author2 Linares Barranco, Bernabé
Huertas Díaz, José Luis
Sánchez Sinencio, Edgar
author2_role author
author
author
dc.contributor.none.fl_str_mv Electrónica y Electromagnetismo
description A unified systematic approach to the design of voltage-controlled oscillators using only operational transconductance amplifiers (OTA's) and capacitors is discussed in this paper. Two classical oscillator models, i.e., quadrature and bandpass-based, are employed to generate several oscillator structures. They are very appropriate for silicon monolithic implementations. The resulting oscillation frequencies are proportional to the transconductance of the OTA and this makes the reported structures well-suited for building voltage controlled oscillators (VCO's). Amplitude stabilization circuits using both automatic gain control (AGC) mechanisms and limitation schemes are presented which are compatible with the transconductance amplifier capacitor oscillator (TACO). Experimental results from bipolar breadboard and CMOS IC prototypes are included showing good potential of OTA-based oscillators for high frequency VCO operation.
publishDate 1990
dc.date.none.fl_str_mv 1990
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/94937
https://doi.org/10.1109/31.45712
url https://hdl.handle.net/11441/94937
https://doi.org/10.1109/31.45712
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv IEEE Transactions on Circuits and Systems, 37 (2), 198-211.
ME87-0004
https://doi.org/10.1109/31.45712
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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