A Novel Three-Point Modulation Technique for Fractional-N Frequency Synthesizer Applications

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dc.contributor.authorPeng, Kang-Chun
dc.contributor.authorLin, Chiu-Chin
dc.contributor.authorChao, Ching-Hui
dc.coverage.issue1cs
dc.coverage.volume22cs
dc.date.accessioned2015-01-20T14:14:18Z
dc.date.available2015-01-20T14:14:18Z
dc.date.issued2013-04cs
dc.description.abstractThis paper presents a novel three-point modulation technique for fractional-N frequency synthesizer applications. Convention modulated fractional-N frequency synthesizers suffer from quantization noise, which degrades not only the phase noise performance but also the modulation quality. To solve this problem, this work proposes a three-point modulation technique, which not only cancels the quantization noise, but also markedly boosts the channel switching speed. Measurements reveal that the implemented 2.4 GHz fractional-N frequency synthesizer using three-point modulation can achieve a 2.5 Mbps GFSK data rate with an FSK error rate of only 1.4 %. The phase noise is approximately -98 dBc/Hz at a frequency offset of 100 kHz. The channel switching time is only 1.1 μs with a frequency step of 80 MHz. Comparing with conventional two-point modulation, the proposed three-point modulation greatly improves the FSK error rate, phase noise and channel switching time by about 10 %, 30 dB and 126 μs, respectively.en
dc.formattextcs
dc.format.extent269-275cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2013, vol. 22, č. 1, s. 269-275. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/36846
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2013/13_01_0269_0275.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectFractional-N frequency synthesizeren
dc.subjectdelta-sigmaen
dc.subjectthree-point modulationen
dc.subjectphase-locked loopen
dc.subjectGFSKen
dc.titleA Novel Three-Point Modulation Technique for Fractional-N Frequency Synthesizer Applicationsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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