{"id":174093,"date":"2017-05-02T23:00:00","date_gmt":"2017-05-02T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseur-n-a-28-nm-haut-debit-pour-systemes-logiciels-a-large-bande\/"},"modified":"2017-05-02T23:00:00","modified_gmt":"2017-05-02T23:00:00","slug":"convertisseur-n-a-28-nm-haut-debit-pour-systemes-logiciels-a-large-bande","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseur-n-a-28-nm-haut-debit-pour-systemes-logiciels-a-large-bande\/","title":{"rendered":"Convertisseur N\/A 28 nm haut d\u00e9bit pour syst\u00e8mes logiciels \u00e0 large bande"},"content":{"rendered":"<p>La conception de ce circuit convient \u00e9galement aux instruments de production destin\u00e9s \u00e0 la synth\u00e8se de signaux direct-RF multistandards ainsi qu\u2019aux applications d\u2019\u00e9lectronique de d\u00e9fense qui n\u00e9cessitent une plage de d\u00e9tection \u00e9largie.<\/p>\n<p>Ce convertisseur 16 bits double voie \u00e0 12 G\u00e9ch\/s assure la synth\u00e8se direct-RF jusqu\u2019\u00e0 6&nbsp;GHz, ce qui \u00e9limine l\u2019\u00e9tage de conversion montante IF-RF et la g\u00e9n\u00e9ration de signaux d\u2019oscillateur local (LO). Cette technique simplifie l\u2019ensemble de la cha\u00eene de signalisation RF tout en r\u00e9duisant le co\u00fbt global du syst\u00e8me. De plus, il maintient un haut niveau de lin\u00e9arit\u00e9 et de performances de bruit \u00e0 ces fr\u00e9quences RF avec, \u00e0 la cl\u00e9, un niveau de configurabilit\u00e9 optimum pour les architectes syst\u00e8me.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/p>\n<p>Le CNA prend ainsi en charge les applications sans fil en bande unique et multi bandes avec 3 voies d\u2019entr\u00e9e de donn\u00e9es complexes contournables \u00e0 un d\u00e9bit d\u2019entr\u00e9e de 1,5&nbsp;G\u00e9ch\/s maximum. Il dispose d\u2019un oscillateur contr\u00f4l\u00e9 num\u00e9riquement (NCO) ind\u00e9pendant par voie d\u2019entr\u00e9e. Ses filtres d\u2019interpolation s\u00e9lectionnables assurent l\u2019interpolation des voies de donn\u00e9es configurables jusqu\u2019\u00e0 8x et l\u2019interpolation finale configurable jusqu\u2019\u00e0 12x pour un jeu complet de d\u00e9bits de donn\u00e9es en entr\u00e9e.<br \/>\nLe circuit int\u00e8gre \u00e9galement un oscillateur contr\u00f4l\u00e9 num\u00e9riquement 48 bits final fonctionnant \u00e0 la fr\u00e9quence du convertisseur N\/A pour supporter la synth\u00e8se de fr\u00e9quence jusqu\u2019\u00e0 6&nbsp;GHz.<br \/>\nL\u2019interface JESD204B (sous-classes 0 et 1) flexible 8 voies \u00e0 15&nbsp;Gbits\/s supporte le mode haute densit\u00e9 12 bits pour augmenter le d\u00e9bit de donn\u00e9es.<br \/>\nDe hautes performances et \u00e0 faible niveau de bruit, le multiplicateur d\u2019horloge PLL int\u00e9gr\u00e9 prend en charge la fr\u00e9quence d\u2019\u00e9chantillonnage du convertisseur N\/A \u00e0 12 G\u00e9ch\/s et offre un circuit de commande d\u2019horloge ADC d\u2019observation avec des ratios de division s\u00e9lectionnables.<\/p>\n<hr \/>\n<p>L\u2019association d\u2019un oscillateur NCO ind\u00e9pendant, d\u2019un contr\u00f4le de gain num\u00e9rique et de diverses combinaisons de filtres d\u2019interpolation par voie d\u2019entr\u00e9e fournit aux concepteurs une vaste panoplie d\u2019options de traitement du signal pour un partitionnement flexible de la cha\u00eene de signalisation entre les domaines analogique et num\u00e9rique, une approche qui facilite la conception de plates-formes d\u00e9finies par logiciel.<\/p>\n<p>De faible consommation, 2.55 W au d\u00e9bit maximum sur les deux voies, ce convertisseur se pr\u00e9sente dans un bo\u00eetier compact BGA-ED 144 billes, de seulement 10 x 10 mm,&nbsp;avec couvercle m\u00e9tallique pour une meilleure dispersion thermique.<\/p>\n<p><a href=\"http:\/\/www.analog.com\/ad9172\" target=\"_blank\" rel=\"noopener\">www.analog.com\/AD9172<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R\u00e9alis\u00e9 en technologie CMOS de 28 nm, le convertisseur num\u00e9rique\/analogique (CNA) AD9172 d\u2019Analog Devices est con\u00e7u pour r\u00e9pondre aux exigences des applications fonctionnant dans la bande passante du Gigahertz et offrir l\u2019efficacit\u00e9 spectrale accrue que requi\u00e8rent les stations de base de communications sans fil multibandes 4G\/5G et les plates-formes de collecte point \u00e0 point HF en bande E \u00e0 2 GHz.<\/p>\n","protected":false},"author":9,"featured_media":174094,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[896,916],"domains":[47],"ppma_author":[1141],"class_list":["post-174093","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-digitalsignalprocessing-fr","tag-rf-transmission-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseur N\/A 28 nm haut d\u00e9bit pour syst\u00e8mes logiciels \u00e0...<\/title>\n<meta name=\"description\" content=\"R\u00e9alis\u00e9 en technologie CMOS de 28 nm, le convertisseur num\u00e9rique\/analogique (CNA) AD9172 d\u2019Analog Devices est con\u00e7u pour r\u00e9pondre aux exigences des...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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