DC Field | Value | Language |
---|---|---|
dc.contributor.author | Seong, Taeho | ko |
dc.contributor.author | Kim, Jae Joon | ko |
dc.contributor.author | Choi, Jaehyouk | ko |
dc.date.accessioned | 2019-08-08T01:20:10Z | - |
dc.date.available | 2019-08-08T01:20:10Z | - |
dc.date.created | 2019-08-07 | - |
dc.date.created | 2019-08-07 | - |
dc.date.created | 2019-08-07 | - |
dc.date.issued | 2015-03 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, v.62, no.3, pp.781 - 790 | - |
dc.identifier.issn | 1549-8328 | - |
dc.identifier.uri | http://hdl.handle.net/10203/264108 | - |
dc.description.abstract | A core-size-scalable LC-voltage-controlled oscillator (VCO) for multi-standard cellular transceivers was fabricated in a 65-nm CMOS process. Theoretical analysis showed that when core current is small a VCO with a larger core-size can achieve lower phase noise. However, when core current is large, a VCO with a smaller core-size can lower phase noise. Based on the analysis, the effective core-size of the VCO was designed to be scalable according to the core current, by switching the secondary core-transistors on or off. Thus, the proposed VCO becomes adaptive to multi-standard cellular transceivers. By turning on the switch, the VCO can operate in the low power (LP) mode for standards that require moderate phase noise in a tight power budget. On the other hand, by turning off the switch, the VCO can operate in the low noise (LN) mode for standards that demand stringent phase noise in a relaxed power budget. When the core current is set to 4 mA, the VCO in the LP mode achieved the phase noise of -127.9 dBc/Hz at the 3 MHz offset from 3.3-GHz signals. When the core current was set to 15 mA, phase noise of the VCO in the LN mode was minimized to -137.5 dBc/Hz at the same offset. The figure of merit (FOM) was -184.8 and -186.5 dB, respectively. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Analysis and Design of a Core-Size-Scalable Low Phase Noise LC-VCO for Multi-Standard Cellular Transceivers | - |
dc.type | Article | - |
dc.identifier.wosid | 000350799100019 | - |
dc.identifier.scopusid | 2-s2.0-85027947633 | - |
dc.type.rims | ART | - |
dc.citation.volume | 62 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 781 | - |
dc.citation.endingpage | 790 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | - |
dc.identifier.doi | 10.1109/TCSI.2014.2382191 | - |
dc.contributor.localauthor | Choi, Jaehyouk | - |
dc.contributor.nonIdAuthor | Seong, Taeho | - |
dc.contributor.nonIdAuthor | Kim, Jae Joon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | LC-VCO | - |
dc.subject.keywordAuthor | core size | - |
dc.subject.keywordAuthor | multi-standard | - |
dc.subject.keywordAuthor | phase noise | - |
dc.subject.keywordAuthor | power budget | - |
dc.subject.keywordAuthor | transceivers | - |
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