{"id":210279,"date":"2016-05-25T13:00:00","date_gmt":"2016-05-25T13:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseur-a-n-14-bits-a-echantillonnage-rf-3-gsps\/"},"modified":"2016-05-25T13:00:00","modified_gmt":"2016-05-25T13:00:00","slug":"convertisseur-a-n-14-bits-a-echantillonnage-rf-3-gsps","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseur-a-n-14-bits-a-echantillonnage-rf-3-gsps\/","title":{"rendered":"Convertisseur A\/N 14 bits \u00e0 \u00e9chantillonnage RF 3-GSPS"},"content":{"rendered":"<p>L\u2019\u00e9chantillonnage RF direct r\u00e9pond aux besoins des ing\u00e9nieurs li\u00e9s \u00e0 une meilleure int\u00e9gration, des performances sonores am\u00e9lior\u00e9es, une largeur de bande plus \u00e9tendue et un encombrement r\u00e9duit des syst\u00e8mes destin\u00e9s aux applications radar, radio logicielle, militaires et spatiales, de mesures et d\u2019essais, de communication sans fil, et de radioastronomie.<\/p>\n<p>Supportant des entr\u00e9es RF jusqu\u2019\u00e0 4 GHz, ce CAN autorise la conversion directe du signal RF dans la premi\u00e8re, la deuxi\u00e8me et la troisi\u00e8me zone de Nyquist, notamment toutes les plages de fr\u00e9quence de bande L et de bande S. Il r\u00e9duit ainsi la complexit\u00e9 du filtre, \u00e9conomise l\u2019espace de la carte et minimise le nombre de composants. Il d\u00e9tecte m\u00eame les signaux les plus faibles gr\u00e2ce \u00e0 sa densit\u00e9 spectrale de puissance de bruit particuli\u00e8rement remarquable de -155 dBFS\/Hz, soit 5 dB au-dessus de la plupart des appareils similaires. Il offre \u00e9galement un rapport signal-bruit hors pair de 58,5 dB \u00e0 une fr\u00e9quence d\u2019entr\u00e9e de 1,8 GHz.<\/p>\n<p>D\u2019une rapidit\u00e9 in\u00e9gal\u00e9e avec un taux d\u2019\u00e9chantillonnage maximal 3-GSPS, ce convertisseur offre une largeur de bande instantan\u00e9e de 1,5 GHz par canal, donnant aux ing\u00e9nieurs la possibilit\u00e9 d\u2019utiliser les r\u00e9cepteurs \u00e0 large bande et les composantes en phase et en quadrature au-del\u00e0 de 2,5 GHz.<br \/>\nLe convertisseur num\u00e9rique multi bande abaisseur de fr\u00e9quence extrait une ou deux sous-bandes par canal, ce qui permet une importante r\u00e9duction du rendement de donn\u00e9es de l\u2019interface num\u00e9rique allant jusqu\u2019\u00e0 92%, une diminution de la taille du syst\u00e8me, ainsi que la r\u00e9alisation d\u2019\u00e9conomies d\u2019\u00e9nergie et de ressources de traitement.<\/p>\n<hr \/>\n<p>Pour acc\u00e9l\u00e9rer le d\u00e9veloppement et maximiser les performances, les ing\u00e9nieurs peuvent dor\u00e9navant concevoir une cha\u00eene compl\u00e8te de traitement analogique du signal en utilisant ce CAN conjointement avec l\u2019amplificateur diff\u00e9rentiel \u00e0 double canal 7 GHz LMH3404 qui supporte les largeurs de bande de CC \u00e0 1,5 GHz, le synth\u00e9tiseur de fr\u00e9quence \u00e0 bande large 9,8 GHz LMX2592 et le conditionneur d\u2019horloge LMK04828 conforme \u00e0 la norme JESD204B. De plus, le processeur 66AK2L06 offre une alternative optimis\u00e9e pour le syst\u00e8me aux circuits logiques programmables (FPGA).<\/p>\n<p>Outre la carte d\u2019\u00e9valuation ADC32RF45EVM d\u00e9j\u00e0 existante, ce convertisseur sera produit en masse au cours du troisi\u00e8me trimestre 2016, en boitiers QFN 72 broches, de 10 x 10 mm<\/p>\n<p><a href=\"http:\/\/www.ti.com\/ADC32RF45-pr-eu\" target=\"_blank\" rel=\"noopener\">www.ti.com\/ADC32RF45<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Portant les performances d\u2019\u00e9chantillonnage de radiofr\u00e9quence (RF) au plus haut niveau, le convertisseur analogique-num\u00e9rique (CAN) 14 bits ADC32RF45 de Texas Instruments est, \u00e0 ce jour, le plus rapide de l\u2019industrie. Capable d\u2019ex\u00e9cuter une conversion directe du signal RF jusqu\u2019\u00e0 4 GHz, ce CAN \u00e0 double canal permet aux ing\u00e9nieurs d\u2019acc\u00e9der \u00e0 la plage dynamique et la largeur de bande d\u2019entr\u00e9e la plus \u00e9lev\u00e9e. <\/p>\n","protected":false},"author":9,"featured_media":210280,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[889,916],"domains":[47],"ppma_author":[1141],"class_list":["post-210279","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-analog-fr","tag-rf-transmission-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseur A\/N 14 bits \u00e0 \u00e9chantillonnage RF 3-GSPS ...<\/title>\n<meta name=\"description\" content=\"Portant les performances d\u2019\u00e9chantillonnage de radiofr\u00e9quence (RF) au plus haut niveau, le convertisseur analogique-num\u00e9rique (CAN) 14 bits ADC32RF45 de...\" \/>\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\/210279\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convertisseur A\/N 14 bits \u00e0 \u00e9chantillonnage RF 3-GSPS\" \/>\n<meta property=\"og:description\" content=\"Portant les performances d\u2019\u00e9chantillonnage de radiofr\u00e9quence (RF) au plus haut niveau, le convertisseur analogique-num\u00e9rique (CAN) 14 bits ADC32RF45 de Texas Instruments est, \u00e0 ce jour, le plus rapide de l\u2019industrie. Capable d\u2019ex\u00e9cuter une conversion directe du signal RF jusqu\u2019\u00e0 4 GHz, ce CAN \u00e0 double canal permet aux ing\u00e9nieurs d\u2019acc\u00e9der \u00e0 la plage dynamique et la largeur de bande d\u2019entr\u00e9e la plus \u00e9lev\u00e9e.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/210279\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2016-05-25T13:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci7877_ti_adc32rf45_pr_graphic_r.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1042\" \/>\n\t<meta property=\"og:image:height\" content=\"776\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" 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