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https://hdl.handle.net/1822/16357
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Campo DC | Valor | Idioma |
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dc.contributor.author | Carmo, João Paulo Pereira | - |
dc.contributor.author | Correia, J. H. | - |
dc.date.accessioned | 2012-01-11T17:07:28Z | - |
dc.date.available | 2012-01-11T17:07:28Z | - |
dc.date.issued | 2011 | - |
dc.identifier.isbn | 978-1-4577-1664-5 | - |
dc.identifier.uri | https://hdl.handle.net/1822/16357 | - |
dc.description.abstract | This paper presents a frequency synthesizer for the frequency of 2.4 GHz, which were designed to present a reduced level of reference frequency spurs. Parts of the synthesizer were fabricated in a standard 0.18 μm CMOS process, whose architecture is based on a Phase-Locked Loop (PLL) with an integer divider in the feedback loop and was designed to work with a voltage supply of only 1.8 V. Some building blocks are reused thus the novelty of this paper is presenting a PLL with two new blocks for reducing the magnitude of spurs of the .process, e.g., a sample-and-hold circuit and a quantizer circuit (with N quantizing levels). The PLL behaviour was simulated for a few number of levels - N={32, 64, 128} - and for a variety of loop-filters. As showed by the simulations, the quantizations provide an additional reduction of the reference-frequency spurs into the output of the PLL. Moreover, the locking time is kept low even after including the two new circuit blocks in the loop | por |
dc.description.sponsorship | (undefined) | por |
dc.language.iso | eng | por |
dc.publisher | IEEE | por |
dc.rights | restrictedAccess | por |
dc.subject | PLL | por |
dc.subject | CMOS | por |
dc.subject | Wireless microsystems | por |
dc.title | PLL at 2.4 GHz with reduced reference spurs | por |
dc.type | conferencePaper | por |
dc.peerreviewed | yes | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 171 | por |
oaire.citationEndPage | 175 | por |
oaire.citationConferencePlace | Natal, Brasil | por |
oaire.citationTitle | 2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011) | por |
dc.identifier.doi | 10.1109/IMOC.2011.6169258 | por |
sdum.conferencePublication | 2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011) | por |
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JPC_Brasil_2011.pdf Acesso restrito! | 607,72 kB | Adobe PDF | Ver/Abrir |