{"id":230696,"date":"2014-08-17T22:00:00","date_gmt":"2014-08-17T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/horloges-faible-gigue-pour-centres-de-donnees-et-infrastructures-internet\/"},"modified":"2014-08-17T22:00:00","modified_gmt":"2014-08-17T22:00:00","slug":"horloges-faible-gigue-pour-centres-de-donnees-et-infrastructures-internet","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/horloges-faible-gigue-pour-centres-de-donnees-et-infrastructures-internet\/","title":{"rendered":"Horloges faible gigue pour centres de donn\u00e9es et infrastructures Internet"},"content":{"rendered":"<p>Ces composants mono puce &agrave; gigue ultra faible combinent de la synth&egrave;se d&rsquo;horloge et une fonctionnalit&eacute; d&rsquo;att&eacute;nuation de gigue pour r&eacute;duire le co&ucirc;t et la complexit&eacute; des &eacute;quipements &agrave; destination des r&eacute;seaux optiques, des infrastructures sans fil, de l&rsquo;acc&egrave;s\/agr&eacute;gation &agrave; large bande, du Carrier Ethernet, du test et de la mesure, et des &eacute;quipements de centre de donn&eacute;es ou d&rsquo;entreprise tels que les routeurs p&eacute;riph&eacute;riques, les commutateurs, les &eacute;quipements de stockage et les serveurs.<\/p>\n<p>L&rsquo;explosion de la demande pour plus de bande passante et la complexit&eacute; toujours croissante des infrastructures Internet et des syst&egrave;mes de centre de donn&eacute;es imposent la mise &agrave; disposition d&rsquo;une large vari&eacute;t&eacute; d&rsquo;horloges de diff&eacute;rentes caract&eacute;ristiques pour les fr&eacute;quences, le format des signaux et le niveau de tension. Les exigences extr&ecirc;mes en termes de performances au niveau de la gigue, afin de pouvoir supporter les taux de transfert de donn&eacute;es les plus &eacute;lev&eacute;s pour les r&eacute;seaux 10\/40\/100G, sont &eacute;galement un sujet de pr&eacute;occupation majeure. Etant donn&eacute; la flexibilit&eacute; limit&eacute;e et le faible niveau d&rsquo;int&eacute;gration des solutions traditionnelles d&rsquo;horloges, les concepteurs de mat&eacute;riel sont parfois contraints d&rsquo;utiliser une combinaison on&eacute;reuse et compliqu&eacute;e de g&eacute;n&eacute;rateurs d&rsquo;horloge, d&rsquo;att&eacute;nuateurs de gigue, d&rsquo;oscillateurs et de registres tampons pour r&eacute;aliser leurs arbres d&rsquo;horloges. Afin de r&eacute;pondre &agrave; ces imp&eacute;ratifs industriels, les nouveaux att&eacute;nuateurs de gigue et g&eacute;n&eacute;rateurs d&rsquo;horloge Si534x de Silicon Labs b&eacute;n&eacute;ficient d&rsquo;une flexibilit&eacute; en fr&eacute;quence sans pr&eacute;c&eacute;dent et d&rsquo;une int&eacute;gration &quot; clock-tree-on-a-chip &quot;, fournissant ainsi une solution efficace et &eacute;conomique qui combine toutes les fonctionnalit&eacute;s li&eacute;es au syst&egrave;me d&rsquo;horloge pour les r&eacute;unir en un circuit int&eacute;gr&eacute; unique.<\/p>\n<hr \/>\n<p>Silicon Labs propose les att&eacute;nuateurs de gigue Si5347\/46\/45\/44\/42 et les g&eacute;n&eacute;rateurs d&rsquo;horloge Si5341\/40 pour constituer une plateforme, configurable via I2C, qui r&eacute;unit des caract&eacute;ristiques exceptionnelles dans l&rsquo;industrie gr&acirc;ce &agrave; ses excellentes capacit&eacute;s de d&eacute;calage en fr&eacute;quence et la meilleure performance d&rsquo;att&eacute;nuation de gigue (100 fs RMS) du march&eacute;. En utilisant jusqu&rsquo;&agrave; quatre PLL d&rsquo;att&eacute;nuation de gigue ind&eacute;pendants et jusqu&rsquo;&agrave; cinq synth&eacute;tiseurs fractionnels MultiSynth &agrave; gigue ultra faible, la famille Si534x est capable de g&eacute;n&eacute;rer jusqu&rsquo;&agrave; dix sorties assurant toutes les combinaisons de fr&eacute;quences entre 100 Hz et 800 Hz dans une large gamme de formats ( LVPECL, LVDS, CML, HCSL et LVCMOS), s&eacute;lectionnables par l&rsquo;utilisateur. Ce niveau exceptionnel d&rsquo;int&eacute;gration et de flexibilit&eacute; de fr&eacute;quences &eacute;limine les multiples IC d&rsquo;horloge et autres composants discrets pour la conversion de niveau, les filtres de boucle et d&rsquo;alimentation, ce qui r&eacute;duit le co&ucirc;t en composant (BOM) ainsi que la&nbsp; complexit&eacute; tout en fournissant une marge sup&eacute;rieure &agrave; 50% sur les sp&eacute;cifications de gigue tr&egrave;s contraignantes dans les r&eacute;seaux 10\/40\/100G.<\/p>\n<p><a href=\"http:\/\/www.silabs.com\/timing\" target=\"_blank\" title=\"www.silabs.com\/timing\" rel=\"noopener\">www.silabs.com\/timing<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Silicon Labs vient de pr\u00e9senter des solutions d&rsquo;horloges tr\u00e8s flexibles en terme de fr\u00e9quence et offrant une excellente performance de gigue. Le portfolio d&rsquo;horloges de prochaine g\u00e9n\u00e9ration Si534x \u00a0\u00bb clock-tree-on-a-chip \u00a0\u00bb de Silicon Labs comprend des g\u00e9n\u00e9rateurs d&rsquo;horloges \u00e0 hautes performances et des att\u00e9nuateurs de gigue multi-PLL hautement int\u00e9gr\u00e9s.<\/p>\n","protected":false},"author":22,"featured_media":230697,"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-230696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Horloges faible gigue pour centres de donn\u00e9es et infrastructur...<\/title>\n<meta name=\"description\" content=\"Silicon Labs vient de pr\u00e9senter des solutions d&#039;horloges tr\u00e8s flexibles en terme de fr\u00e9quence et offrant une excellente performance de gigue. Le portfolio...\" \/>\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\/230696\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Horloges faible gigue pour centres de donn\u00e9es et infrastructures Internet\" \/>\n<meta property=\"og:description\" content=\"Silicon Labs vient de pr\u00e9senter des solutions d&#039;horloges tr\u00e8s flexibles en terme de fr\u00e9quence et offrant une excellente performance de gigue. Le portfolio d&#039;horloges de prochaine g\u00e9n\u00e9ration Si534x &quot; clock-tree-on-a-chip &quot; de Silicon Labs comprend des g\u00e9n\u00e9rateurs d&#039;horloges \u00e0 hautes performances et des att\u00e9nuateurs de gigue multi-PLL hautement int\u00e9gr\u00e9s.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/230696\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-08-17T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci4425_slab0240-si534x-press-notext.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1156\" \/>\n\t<meta property=\"og:image:height\" content=\"632\" \/>\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\" 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