On designing OTA-C graphic-equalizers with MOSFET-triode transconductors
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1109/ISCAS.2001.921828 http://hdl.handle.net/11449/66424 |
Resumo: | A CMOS audio-equalizer based on a parallel-array of 2nd-order bandpass-sections is presented and realized with triode transconductors. It has a programmable 12db-boost/cut on each of its three decade-bands, easily achieved through the linear dependence of gm on VDS. In accordance with a 0.8μm n-well double-metal fabrication process, a range of simulations supports theoretical analysis and circuit performance at different boost/cut scenarios. For VDD=3.3V, fullboosting stand-by prover consumption is 1.05mW. THD=-42.61dB@1Vpp and may be improved by balanced structures. Thermal- and I/f-noise spectral densities are 3.2μV/Hz12 and 18.2μV/Hz12@20Hz, respectively, for a dynamic range of 52.3dB@1Vpp. The equalizer effective area is 2.4mm2. The drawback of the existing transmission-zero due to the feedthrough-capacitance of a triode input-device is also addressed. The proposed topology can be extended to the design of more complex graphic-equalizers and hearing-aids. |
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On designing OTA-C graphic-equalizers with MOSFET-triode transconductorsBandpass filtersElectric convertersEnergy utilizationMOSFET devicesSpectrum analysisThermal noiseTransconductanceGraphic equalizersTransconductorsDecision feedback equalizersA CMOS audio-equalizer based on a parallel-array of 2nd-order bandpass-sections is presented and realized with triode transconductors. It has a programmable 12db-boost/cut on each of its three decade-bands, easily achieved through the linear dependence of gm on VDS. In accordance with a 0.8μm n-well double-metal fabrication process, a range of simulations supports theoretical analysis and circuit performance at different boost/cut scenarios. For VDD=3.3V, fullboosting stand-by prover consumption is 1.05mW. THD=-42.61dB@1Vpp and may be improved by balanced structures. Thermal- and I/f-noise spectral densities are 3.2μV/Hz12 and 18.2μV/Hz12@20Hz, respectively, for a dynamic range of 52.3dB@1Vpp. The equalizer effective area is 2.4mm2. The drawback of the existing transmission-zero due to the feedthrough-capacitance of a triode input-device is also addressed. The proposed topology can be extended to the design of more complex graphic-equalizers and hearing-aids.Electrical Engineering Dept. UNESP, CP205-CEP12516-410, GuaratinguetaElectrical Engineering Dept. UNESP, CP205-CEP12516-410, GuaratinguetaUniversidade Estadual Paulista (Unesp)De Lima, J. A. [UNESP]Petraglia, A. [UNESP]2014-05-27T11:20:13Z2014-05-27T11:20:13Z2001-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject212-215http://dx.doi.org/10.1109/ISCAS.2001.921828Proceedings - IEEE International Symposium on Circuits and Systems, v. 1, p. 212-215.0271-4310http://hdl.handle.net/11449/6642410.1109/ISCAS.2001.9218282-s2.0-0035011638Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings - IEEE International Symposium on Circuits and Systems0,237info:eu-repo/semantics/openAccess2021-10-23T21:41:38Zoai:repositorio.unesp.br:11449/66424Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T21:41:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors |
title |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors |
spellingShingle |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors De Lima, J. A. [UNESP] Bandpass filters Electric converters Energy utilization MOSFET devices Spectrum analysis Thermal noise Transconductance Graphic equalizers Transconductors Decision feedback equalizers |
title_short |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors |
title_full |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors |
title_fullStr |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors |
title_full_unstemmed |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors |
title_sort |
On designing OTA-C graphic-equalizers with MOSFET-triode transconductors |
author |
De Lima, J. A. [UNESP] |
author_facet |
De Lima, J. A. [UNESP] Petraglia, A. [UNESP] |
author_role |
author |
author2 |
Petraglia, A. [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
De Lima, J. A. [UNESP] Petraglia, A. [UNESP] |
dc.subject.por.fl_str_mv |
Bandpass filters Electric converters Energy utilization MOSFET devices Spectrum analysis Thermal noise Transconductance Graphic equalizers Transconductors Decision feedback equalizers |
topic |
Bandpass filters Electric converters Energy utilization MOSFET devices Spectrum analysis Thermal noise Transconductance Graphic equalizers Transconductors Decision feedback equalizers |
description |
A CMOS audio-equalizer based on a parallel-array of 2nd-order bandpass-sections is presented and realized with triode transconductors. It has a programmable 12db-boost/cut on each of its three decade-bands, easily achieved through the linear dependence of gm on VDS. In accordance with a 0.8μm n-well double-metal fabrication process, a range of simulations supports theoretical analysis and circuit performance at different boost/cut scenarios. For VDD=3.3V, fullboosting stand-by prover consumption is 1.05mW. THD=-42.61dB@1Vpp and may be improved by balanced structures. Thermal- and I/f-noise spectral densities are 3.2μV/Hz12 and 18.2μV/Hz12@20Hz, respectively, for a dynamic range of 52.3dB@1Vpp. The equalizer effective area is 2.4mm2. The drawback of the existing transmission-zero due to the feedthrough-capacitance of a triode input-device is also addressed. The proposed topology can be extended to the design of more complex graphic-equalizers and hearing-aids. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-01-01 2014-05-27T11:20:13Z 2014-05-27T11:20:13Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1109/ISCAS.2001.921828 Proceedings - IEEE International Symposium on Circuits and Systems, v. 1, p. 212-215. 0271-4310 http://hdl.handle.net/11449/66424 10.1109/ISCAS.2001.921828 2-s2.0-0035011638 |
url |
http://dx.doi.org/10.1109/ISCAS.2001.921828 http://hdl.handle.net/11449/66424 |
identifier_str_mv |
Proceedings - IEEE International Symposium on Circuits and Systems, v. 1, p. 212-215. 0271-4310 10.1109/ISCAS.2001.921828 2-s2.0-0035011638 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings - IEEE International Symposium on Circuits and Systems 0,237 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
212-215 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046435154821120 |