{"id":229804,"date":"2014-04-16T22:00:00","date_gmt":"2014-04-16T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/bloc-amplificateur-de-gain-20-db-de-grande-linearite\/"},"modified":"2014-04-16T22:00:00","modified_gmt":"2014-04-16T22:00:00","slug":"bloc-amplificateur-de-gain-20-db-de-grande-linearite","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/bloc-amplificateur-de-gain-20-db-de-grande-linearite\/","title":{"rendered":"Bloc amplificateur de gain 20 dB de grande lin\u00e9arit\u00e9"},"content":{"rendered":"<p>Cet amplificateur est pr&eacute;sent&eacute; en deux classes, incluant la version de classe A qui est test&eacute;e et garantie &agrave; 100% pour un OIP3 minimum de 42,2 dBm &agrave; 240 MHz, et la version de classe B dont l&rsquo;OIP3 est typiquement de 45,7 dBm &agrave; la m&ecirc;me fr&eacute;quence. Les entr&eacute;e et sortie sont toutes les deux adapt&eacute;es 50 ohms en interne, de 20 MHz &agrave; 1,4 GHz, avec un gain en puissance constant &agrave; &plusmn;0,5 dB de 20 dB dans toute la bande de fr&eacute;quences. Cette adaptation interne en 50 ohms simplifie la conception et facilite la mise en cascade en utilisant un minimum de composants externes. Chaque circuit requiert seulement un condensateur de blocage du continu en entr&eacute;e et en sortie, avec une bobine d&rsquo;arr&ecirc;t pour polariser sa sortie en collecteur ouvert.<br \/>\nFabriqu&eacute; &agrave; partir d&rsquo;un processus de pointe en SiGe et BiCMOS, ce composant pr&eacute;sente un fonctionnement d&rsquo;une stabilit&eacute; exceptionnelle, tout en tol&eacute;rant des variations de la tension d&rsquo;alimentation et de la temp&eacute;rature. Il est notamment sp&eacute;cifi&eacute; pour fonctionner avec une temp&eacute;rature du bo&icirc;tier de -40 &deg;C &agrave; 85 &deg;C.<br \/>\nCe circuit est appropri&eacute; &agrave; l&rsquo;amplification des signaux FI et RF dans les &eacute;metteurs-r&eacute;cepteurs &agrave; faible distorsion ou les r&eacute;cepteurs &agrave; des fr&eacute;quences jusqu&rsquo;&agrave; 1,5 GHz. Il convient aussi aux r&eacute;cepteurs &agrave; pr&eacute;-distorsion num&eacute;rique dont les performances d&eacute;pendent du maintien d&rsquo;un faible niveau de distorsion dans le trajet du signal. De plus, il est bien adapt&eacute; pour une gamme de radios &agrave; large bande et &agrave; bande &eacute;troite qui fonctionnent dans les bandes VHF\/UHF comme les radiodiffusions pour les r&eacute;seaux c&acirc;bl&eacute;s, les services de donn&eacute;es dans les bandes libres, les infrastructures de station de base, l&rsquo;utilisation de la norme t&eacute;l&eacute;phonique LTE et les radios de s&eacute;curit&eacute; publique.<br \/>\nDe faible consommation, les deux versions de cet amplificateur sont pr&eacute;sent&eacute;es en bo&icirc;tier QFN-24 de 4 x 4 mm et n&eacute;cessitent qu&rsquo;une seule alimentation de 5 V d&rsquo;une intensit&eacute; de 93 mA. <\/p>\n<\/p>\n<p><a title=\"www.linear.com\/product\/LTC6431-20\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/ltc6431-20\" rel=\"noopener\">www.linear.com\/product\/LTC6431-20<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019amplificateur de gain fixe \u00e0 entr\u00e9e et sortie unipolaire LTC6431-20 de Linear Technology couvre la bande de fr\u00e9quences de 20 MHz \u00e0 2 GHz et pr\u00e9sente un point d\u2019interception du troisi\u00e8me ordre de sortie OIP3 remarquable de 46,2 dBm et un facteur de bruit de 2,6 dB. Son point de compression en sortie \u00e0 1dB (OP1dB) est un des meilleurs de sa cat\u00e9gorie \u00e0 22 dBm.<\/p>\n","protected":false},"author":22,"featured_media":229805,"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-229804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Bloc amplificateur de gain 20 dB de grande lin\u00e9arit\u00e9 ...<\/title>\n<meta name=\"description\" content=\"L\u2019amplificateur de gain fixe \u00e0 entr\u00e9e et sortie unipolaire LTC6431-20 de Linear Technology couvre la bande de fr\u00e9quences de 20 MHz \u00e0 2 GHz et pr\u00e9sente...\" \/>\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\/229804\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bloc amplificateur de gain 20 dB de grande lin\u00e9arit\u00e9\" \/>\n<meta property=\"og:description\" content=\"L\u2019amplificateur de gain fixe \u00e0 entr\u00e9e et sortie unipolaire LTC6431-20 de Linear Technology couvre la bande de fr\u00e9quences de 20 MHz \u00e0 2 GHz et pr\u00e9sente un point d\u2019interception du troisi\u00e8me ordre de sortie OIP3 remarquable de 46,2 dBm et un facteur de bruit de 2,6 dB. Son point de compression en sortie \u00e0 1dB (OP1dB) est un des meilleurs de sa cat\u00e9gorie \u00e0 22 dBm.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/229804\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-04-16T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6851_linear_ltc6431-20.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1899\" \/>\n\t<meta property=\"og:image:height\" content=\"1356\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"eeNews Europe\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading 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