Log-Domain Current-mode Quadrature Sinusoidal Oscillator
| dc.contributor.author | Prommee, Pipat | |
| dc.contributor.author | Prapakorn, Nattawit | |
| dc.contributor.author | Swamy, M. N. S. | |
| dc.coverage.issue | 3 | cs |
| dc.coverage.volume | 20 | cs |
| dc.date.accessioned | 2016-03-01T08:14:51Z | |
| dc.date.available | 2016-03-01T08:14:51Z | |
| dc.date.issued | 2011-09 | cs |
| dc.description.abstract | A log-domain current-mode quadrature sinusoidal oscillator based on lossless integrators is presented. The circuit is a direct realization of a first-order differential equation for obtaining the lossy and lossless integrators. Each of the log-domain lossless integrators is realized by using only NPN transistors and a grounded capacitor for achieving low-power and fast response. The proposed oscillator uses two-lossless integrator loop which can be electronically tuned through bias currents. A validated BJT model which is used in SPICE simulation operated from a single power supply as low as 2.5V. The oscillation frequency is controlled over four decades of frequency. The total harmonic distortions for two-phases QSO (12MHz) is obtained around 0.93% which enables fully integrated in telecommunication systems. The proposed circuit is also suitable for high-frequency applications. Nonideality studies are included and PSpice simulation results confirm the theoretical results. | en |
| dc.format | text | cs |
| dc.format.extent | 600-607 | cs |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Radioengineering. 2011, vol. 20, č. 3, s. 600-607. ISSN 1210-2512 | cs |
| dc.identifier.issn | 1210-2512 | |
| dc.identifier.uri | http://hdl.handle.net/11012/56885 | |
| dc.language.iso | en | cs |
| dc.publisher | Společnost pro radioelektronické inženýrství | cs |
| dc.relation.ispartof | Radioengineering | cs |
| dc.relation.uri | http://www.radioeng.cz/fulltexts/2011/11_03_600_607.pdf | cs |
| dc.rights | Creative Commons Attribution 3.0 Unported License | en |
| dc.rights.access | openAccess | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | en |
| dc.subject | Log-domain filtering | en |
| dc.subject | high-frequency | en |
| dc.subject | low-voltage | en |
| dc.subject | electronically-controlled | en |
| dc.subject | quadrature oscillator | en |
| dc.title | Log-Domain Current-mode Quadrature Sinusoidal Oscillator | en |
| dc.type.driver | article | en |
| dc.type.status | Peer-reviewed | en |
| dc.type.version | publishedVersion | en |
| eprints.affiliatedInstitution.faculty | Fakulta eletrotechniky a komunikačních technologií | cs |
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