High input impedance voltage-mode universal filter and its modification as quadrature oscillator using VDDDAs

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dc.contributor.authorTuntrakool, Suntics
dc.contributor.authorKumngern, Montreecs
dc.contributor.authorŠotner, Romancs
dc.contributor.authorHerencsár, Norbertcs
dc.contributor.authorSuwanjan, Peerawutcs
dc.contributor.authorJaikla, Winaics
dc.coverage.issue5cs
dc.coverage.volume55cs
dc.date.accessioned2020-08-04T11:00:52Z
dc.date.available2020-08-04T11:00:52Z
dc.date.issued2017-05-23cs
dc.description.abstractThe second order universal voltage-mode filter using voltage differencing differential difference amplifiers (VDDDAs) has been proposed. It has high input impedance voltage-mode biquad filter with orthogonal tune of natural frequency and quality factor. The proposed filter simultaneously provides five filter responses: low-pass (LP), high-pass (HP), band-reject (BR), all-pass (AP) and band-pass (BP) in the same circuit topology. The natural frequency and quality factor can be tuned electronically and orthogonally dc bias current. The output impedance at output nodes HP, AP and BR has low impedance which can connect to other circuit without the use of voltage buffers. The proposed filter consists of three VDDDAs, one grounded resistor and two grounded capacitors. This makes the proposed filter suitable for integrated circuit development. With slightly modifying the proposed filter, the voltage-mode qudrature sinusoidal oscillator with low output impedance and independent control of condition of oscillation (CO) and frequency of oscillation (FO) has been achieved. The results shown in this paper are from PSPICE simulation and experiment to validate the proposed circuits.en
dc.formattextcs
dc.format.extent324-332cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationINDIAN JOURNAL OF PURE & APPLIED PHYSICS. 2017, vol. 55, issue 5, p. 324-332.en
dc.identifier.issn0019-5596cs
dc.identifier.other135971cs
dc.identifier.urihttp://hdl.handle.net/11012/69294
dc.language.isoencs
dc.publisherNISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)cs
dc.relation.ispartofINDIAN JOURNAL OF PURE & APPLIED PHYSICScs
dc.relation.urihttp://nopr.niscair.res.in/handle/123456789/41817cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 2.5 Genericcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0019-5596/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/cs
dc.subjectAnalog filteren
dc.subjectVDDDAen
dc.subjectVoltage-modeen
dc.subjectSingle input-multiple outputen
dc.subjectOscillatoren
dc.titleHigh input impedance voltage-mode universal filter and its modification as quadrature oscillator using VDDDAsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-135971en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:00:52en
sync.item.modts2020.08.04 12:25:54en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav radioelektronikycs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav telekomunikacícs
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