{"id":204480,"date":"2016-07-19T00:00:00","date_gmt":"2016-07-19T00:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/un-convertisseur-n-a-qui-ameliore-lexperience-televisuelle-de-derniere-generation\/"},"modified":"2016-07-19T00:00:00","modified_gmt":"2016-07-19T00:00:00","slug":"un-convertisseur-n-a-qui-ameliore-lexperience-televisuelle-de-derniere-generation","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/un-convertisseur-n-a-qui-ameliore-lexperience-televisuelle-de-derniere-generation\/","title":{"rendered":"Un convertisseur N\/A qui am\u00e9liore l\u2019exp\u00e9rience t\u00e9l\u00e9visuelle de derni\u00e8re g\u00e9n\u00e9ration"},"content":{"rendered":"<p>Ce convertisseur num\u00e9rique\/analogique (CNA) marque une perc\u00e9e industrielle significative en fournissant aux op\u00e9rateurs de services haut d\u00e9bit et de communications sans fil la bande passante la plus large et la plage dynamique la plus importante actuelles du march\u00e9. Les op\u00e9rateurs pourront ainsi r\u00e9pondre aux attentes des consommateurs qui exigent des performances de lecture, vid\u00e9o et donn\u00e9es, accessibles en permanence avec un niveau de qualit\u00e9 sans cesse croissant, sans \u00eatre oblig\u00e9s d\u2019apporter des modifications on\u00e9reuses et \u00e9tendues \u00e0 l\u2019architecture et \u00e0 la conception des convertisseurs.<\/p>\n<p>\u00c0 2,5&nbsp;GHz, la bande passante de ce convertisseur 16&nbsp;bits de12&nbsp;giga-\u00e9chantillons par seconde (G\u00e9ch\/s) d\u00e9passe de pr\u00e8s de 40&nbsp;% la fr\u00e9quence facultative sp\u00e9cifi\u00e9e \u00e0 1794&nbsp;GHz par les industriels du c\u00e2ble pour la future norme DOCSIS&nbsp;3.1. Avec une telle bande passante, les c\u00e2blo-op\u00e9rateurs peuvent planifier les augmentations de capacit\u00e9 et les am\u00e9liorations apport\u00e9es aux r\u00e9seaux de prochaine g\u00e9n\u00e9ration sans modifier la conception des convertisseurs, ce qui r\u00e9duit les d\u00e9lais de d\u00e9veloppement des produits et les ressources d\u2019ing\u00e9nierie n\u00e9cessaires.<\/p>\n<p>Ce CNA se distingue aussi par une dynamique sans interf\u00e9rence (SFDR) de -82&nbsp;dBc pour une densit\u00e9 spectrale de bruit (NSD) de -167&nbsp;dBm\/Hz. Ainsi, les concepteurs peuvent synth\u00e9tiser des signaux dans un large spectre de fr\u00e9quences, allant du continu aux fr\u00e9quences radio jusqu\u2019\u00e0 6&nbsp;GHz. En ce qui concerne les applications sans fil, cette caract\u00e9ristique \u00e9limine un \u00e9tage de conversion entre les fr\u00e9quences interm\u00e9diaires et radio (IF\/RF) et la g\u00e9n\u00e9ration d\u2019oscillateur local, r\u00e9duisant ainsi le nombre de composants, la taille et la consommation d\u2019\u00e9nergie des stations de base.<\/p>\n<hr \/>\n<p>Compatible avec l\u2019ensemble des protocoles r\u00e9gissant les infrastructures de communications sans fil tels que WCDMA, LTE, LTE-A, point-\u00e0-point, ce convertisseur facilite la conception de solutions radio multi bandes et multistandards avanc\u00e9es.<\/p>\n<p>Un double filtre d\u2019interpolation (FIR85) est \u00e9galement int\u00e9gr\u00e9 dans ce circuit, ce qui autorise des configurations affichant des d\u00e9bits de transmission et un cadencement inf\u00e9rieurs du convertisseur en vue de r\u00e9duire la consommation globale du syst\u00e8me et de simplifier les exigences de filtrage. En mode de fonctionnement mixte, les CNA RF peuvent \u00eatre configur\u00e9s pour reconstituer les porteuses RF dans les 2e et 3e zones de Nyquist jusqu\u2019\u00e0 7,5&nbsp;GHz, tout en maintenant une dynamique exceptionnelle.<\/p>\n<p>Ce composant est propos\u00e9 en bo\u00eetiers CSP-BGA de 8 x 8 mm, 165 billes au pas de 0.5 mm, ou de 11 x 11 mm, 169 billes au pas de 0.8 mm.<\/p>\n<p><a href=\"http:\/\/www.analog.com\/en\/products\/digital-to-analog-converters\/high-speed-da-converters\/ad9162.html#product-overview\" target=\"_blank\" rel=\"noopener\">www.analog.com\/AD9162<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gr\u00e2ce \u00e0 l\u2019introduction de son convertisseur num\u00e9rique\/analogique AD9162, Analog Devices donne aux t\u00e9l\u00e9spectateurs la possibilit\u00e9 d\u2019acc\u00e9der d\u00e8s aujourd\u2019hui \u00e0 la t\u00e9l\u00e9vision du futur aux formats d\u2019image ultra-haute d\u00e9finition (UHD) et 4K sur plusieurs canaux en b\u00e9n\u00e9ficiant de d\u00e9bits sans pr\u00e9c\u00e9dent en lecture et t\u00e9l\u00e9chargement. <\/p>\n","protected":false},"author":9,"featured_media":204481,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[896],"domains":[47],"ppma_author":[1141],"class_list":["post-204480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-digitalsignalprocessing-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Un convertisseur N\/A qui am\u00e9liore l\u2019exp\u00e9rience t\u00e9l\u00e9visuel...<\/title>\n<meta name=\"description\" content=\"Gr\u00e2ce \u00e0 l\u2019introduction de son convertisseur num\u00e9rique\/analogique AD9162, Analog Devices donne aux t\u00e9l\u00e9spectateurs la possibilit\u00e9 d\u2019acc\u00e9der d\u00e8s...\" \/>\n<meta name=\"robots\" content=\"index, follow, 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