{"id":233120,"date":"2015-05-17T22:00:00","date_gmt":"2015-05-17T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/un-cna-16-bits-dune-purete-spectrale-exceptionnelle\/"},"modified":"2015-05-17T22:00:00","modified_gmt":"2015-05-17T22:00:00","slug":"un-cna-16-bits-dune-purete-spectrale-exceptionnelle","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/un-cna-16-bits-dune-purete-spectrale-exceptionnelle\/","title":{"rendered":"Un CNA 16 bits d&rsquo;une puret\u00e9 spectrale exceptionnelle"},"content":{"rendered":"<p>Ce convertisseur pr&eacute;sente une intermodulation (IMD) &agrave; deux fr&eacute;quences meilleure que 78dBc, du continu &agrave; 1080MHz en sortie, un faible niveau de bruit de phase et une large bande-passante de 2,1 GHz &agrave; &#8209;3 dB en sortie. Ainsi, il permet une large bande ou une synth&egrave;se de fr&eacute;quence RF directe &eacute;lev&eacute;e, dans les applications comme l&rsquo;instrumentation, les t&eacute;l&eacute;communications &agrave; large bande, les &eacute;quipements de tests et les c&acirc;bles TV DOCSIS CMTS.<br \/>\nLes sorties acceptant &plusmn;1 V fournissent un courant &agrave; pleine &eacute;chelle de 40 mA qu&rsquo;il est possible de r&eacute;gler de la valeur basse 10 mA &agrave; 60 mA selon l&rsquo;application. Les donn&eacute;es sont transmises au CNA via un port &agrave; interface parall&egrave;le LVDS, &agrave; une vitesse pouvant atteindre 1,35 G&eacute;ch.\/s en utilisant une horloge de 675 MHz pour un transfert de donn&eacute;es &agrave; vitesse double (DDR). Deux ports DDR sont requis pour obtenir une vitesse d&rsquo;&eacute;chantillonnage de 2,7 G&eacute;ch.\/s, un seul port assure un fonctionnement &agrave; une vitesse plus basse de 1,35G&eacute;ch.\/s. A 2,7 G&eacute;ch.\/s, ce composant consomme 2,4 W &agrave; partir de deux alimentations de 1,86 V et 3,3 V, tandis qu&rsquo;&agrave; 1,35G&eacute;ch.\/s, la consommation est de seulement 1,4 W.<br \/>\nCon&ccedil;u pour une utilisation ais&eacute;e, le circuit comprend un g&eacute;n&eacute;rateur de signaux num&eacute;riques (patterns) interne, une circuiterie de v&eacute;rification des signaux LVDS et un d&eacute;tecteur de la temp&eacute;rature de jonction pour simplifier le d&eacute;veloppement et la mise au point du syst&egrave;me.<br \/>\nCe CNA est pr&eacute;sent&eacute; dans les versions 11 bits, 14 bits et 16 bits, dans un bo&icirc;tier BGA de 9 x 15 mm conforme &agrave; la norme RoHS et dans les classes de temp&eacute;ratures commerciales et industrielles. <\/p>\n<\/p>\n<p><a title=\"www.linear.com\/product\/LTC2000A\" target=\"_blank\" href=\"http:\/\/www.linear.com\/product\/LTC2000A\" rel=\"noopener\">www.linear.com\/product\/LTC2000A<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour les applications haut de gamme des t\u00e9l\u00e9communications \u00e0 large bande, c\u00e2bl\u00e9es et sans fil, et les radars, le convertisseur num\u00e9rique-analogique (CNA) 16 bits \u00e0 2,7 G\u00e9ch.\/s LTC2000A de Linear Technology pr\u00e9sente une puret\u00e9 spectrale exceptionnelle en sortie, avec un SFDR de 80 dBc \u00e0 50 MHz et de 72 dBc \u00e0 1080 MHz, pour r\u00e9pondre aux exigences les plus strictes de ces applications. <\/p>\n","protected":false},"author":22,"featured_media":233121,"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-233120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Un CNA 16 bits d&#039;une puret\u00e9 spectrale exceptionnelle ...<\/title>\n<meta name=\"description\" content=\"Pour les applications haut de gamme des t\u00e9l\u00e9communications \u00e0 large bande, c\u00e2bl\u00e9es et sans fil, et les radars, le convertisseur num\u00e9rique-analogique...\" \/>\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\/233120\/\" \/>\n<meta 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