{"id":222787,"date":"2011-10-26T22:00:00","date_gmt":"2011-10-26T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/synthetiseur-pll-hyperfrequences-supprimant-le-doublage-de-frequence\/"},"modified":"2011-10-26T22:00:00","modified_gmt":"2011-10-26T22:00:00","slug":"synthetiseur-pll-hyperfrequences-supprimant-le-doublage-de-frequence","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/synthetiseur-pll-hyperfrequences-supprimant-le-doublage-de-frequence\/","title":{"rendered":"Synth\u00e9tiseur PLL hyperfr\u00e9quences supprimant le doublage de fr\u00e9quence"},"content":{"rendered":"<p>La bande passante exceptionnellement large de ce circuit permet &eacute;galement de supprimer un &eacute;tage de doublage de fr&eacute;quence, avec &agrave; la cl&eacute; une architecture syst&egrave;me plus simple et une baisse des co&ucirc;ts dans les applications vis&eacute;es&nbsp;: liaisons radio point-&agrave;-point et multipoints hyperfr&eacute;quences, &eacute;quipements pour infrastructures sans fil, liaisons radios VSAT (Very Small Aperture Terminal &mdash; terminal &agrave; tr&egrave;s petite ouverture), mat&eacute;riels de test de semi-conducteurs, applications radar et radios mobiles priv&eacute;es. Avec une bande passante op&eacute;rationnelle pouvant atteindre 18&nbsp;GHz, cette boucle PLL pr&eacute;sente la fr&eacute;quence la plus &eacute;lev&eacute;e actuellement disponible sur le march&eacute;. &quot;&nbsp;La PLL ADF41020, qui repr&eacute;sente la toute derni&egrave;re r&eacute;f&eacute;rence de la gamme de synth&eacute;tiseurs PLL propos&eacute;e par ADI, nous permet d&rsquo;&eacute;tendre notre offre &agrave; des plages de fr&eacute;quences plus &eacute;lev&eacute;es&nbsp;&quot;, a d&eacute;clar&eacute; Peter Real, vice-pr&eacute;sident Produits lin&eacute;aires et RF d&rsquo;Analog Devices. &quot;&nbsp;Elle permet &eacute;galement de r&eacute;duire de fa&ccedil;on consid&eacute;rable le nombre de composants et le co&ucirc;t des syst&egrave;mes tout en am&eacute;liorant les performances des solutions radio de nouvelle g&eacute;n&eacute;ration.&nbsp;&quot;<br \/>\nLe synth&eacute;tiseur de fr&eacute;quence PLL ADF41020 se compose d&rsquo;un d&eacute;tecteur de fr&eacute;quence et de phase num&eacute;rique &agrave; faible niveau de bruit, d&rsquo;une pompe de charge haute pr&eacute;cision, d&rsquo;un diviseur de r&eacute;f&eacute;rence programmable et de diviseurs haute fr&eacute;quence programmables. Il est possible de mettre en &oelig;uvre un synth&eacute;tiseur complet en utilisant la PLL avec un filtre de boucle externe et un oscillateur command&eacute; en tension (VCO). La PLL peut &ecirc;tre utilis&eacute;e pour commander des oscillateurs VCO hyperfr&eacute;quence externes via un filtre de boucle actif. Son brochage correspond tr&egrave;s pr&eacute;cis&eacute;ment &agrave; celui de la famille de PLL ADF4106\/7\/8 en nombre entier. En cas de mise &agrave; jour d&rsquo;un design, une modification mineure apport&eacute;e &agrave; la topologie existante permet de b&eacute;n&eacute;ficier d&rsquo;une bande passante nettement plus large.<\/p>\n<p><a href=\"http:\/\/www.analog.com\/adf41020\" target=\"_blank\" title=\"www.analog.com\/adf41020\" rel=\"noopener\">http:\/\/www.analog.com\/adf41020<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Analog Devices annonce l&rsquo;introduction sous la r\u00e9f\u00e9rence ADF41020 d&rsquo;un synth\u00e9tiseur de fr\u00e9quence PLL (Phase Locked Loop) que les concepteurs pourront utiliser pour mettre en \u0153uvre des oscillateurs locaux jusqu&rsquo;\u00e0 18 GHz dans les \u00e9tages de conversion (\u00e9l\u00e9vateur et abaisseur) des \u00e9metteurs et r\u00e9cepteurs sans fil.<\/p>\n","protected":false},"author":22,"featured_media":222788,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-222787","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Synth\u00e9tiseur PLL hyperfr\u00e9quences supprimant le doublage de fr...<\/title>\n<meta name=\"description\" content=\"Analog Devices annonce l&#039;introduction sous la r\u00e9f\u00e9rence ADF41020 d&#039;un synth\u00e9tiseur de fr\u00e9quence PLL (Phase Locked Loop) que les concepteurs pourront...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/222787\/\" 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