{"id":182680,"date":"2017-02-14T23:03:00","date_gmt":"2017-02-14T23:03:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/boucle-a-phase-asservie-tout-numerique-ultra-basse-consommation\/"},"modified":"2017-02-14T23:03:00","modified_gmt":"2017-02-14T23:03:00","slug":"boucle-a-phase-asservie-tout-numerique-ultra-basse-consommation","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/boucle-a-phase-asservie-tout-numerique-ultra-basse-consommation\/","title":{"rendered":"Boucle \u00e0 phase asservie tout-num\u00e9rique ultra basse consommation"},"content":{"rendered":"<p align=\"left\">Alors qu\u2019une PLL est traditionnellement l\u2019un des principaux consommateurs d\u2019\u00e9lectricit\u00e9 d\u2019une radio et peut occuper jusqu\u2019\u00e0 30&nbsp;% de sa surface, cette ADPLL pr\u00e9sente une petite surface de 0,18&nbsp;mm\u00b2 dans un CMOS de 40&nbsp;nm, une faible consommation \u00e9lectrique de 0,67&nbsp;mW et d\u2019excellentes performances. D\u2019une grande robustesse, avec moins de -56&nbsp;dBc de modulations parasites et moins de 2&nbsp;ps de gigue, elle d\u00e9passe les performances des PLL num\u00e9riques de derni\u00e8re g\u00e9n\u00e9ration.<\/p>\n<p align=\"left\">L\u2019IoT intuitif est fond\u00e9 sur de minuscules n\u0153uds de capteurs int\u00e9gr\u00e9s de fa\u00e7on invisible dans notre environnement et reli\u00e9s \u00e0 Internet sans fil. Avec des milliards d\u2019appareils IoT en passe d\u2019\u00eatre d\u00e9ploy\u00e9s, les remplacements de batterie deviennent impossibles et la r\u00e9duction de la consommation \u00e9lectrique, en particulier pour la connectivit\u00e9 sans fil, devient une pr\u00e9occupation majeure et le principal d\u00e9fi \u00e0 relever.<\/p>\n<p align=\"left\">La PLL est le composant radio d\u00e9di\u00e9 \u00e0 la synth\u00e8se de fr\u00e9quence et a toujours \u00e9t\u00e9 analogique, m\u00eame si la communaut\u00e9 de chercheurs a longtemps travaill\u00e9 sur des alternatives num\u00e9riques. Les PLL tout-num\u00e9rique offrent un encombrement r\u00e9duit, un contr\u00f4le et une testabilit\u00e9 optimis\u00e9s ainsi qu\u2019une meilleure \u00e9volutivit\u00e9 vers des n\u0153uds CMOS avanc\u00e9s. N\u00e9anmoins, elles restent, \u00e0 ce jour, moins performantes que les solutions analogiques.<\/p>\n<p align=\"left\">Cette ADPLL est une premi\u00e8re sur le march\u00e9, associant une consommation \u00e9lectrique de seulement 0,67&nbsp;mW \u00e0 des performances ultramodernes. Elle prend en charge toutes les sp\u00e9cifications des radios Bluetooth Low Energy (BLE) tout en r\u00e9duisant consid\u00e9rablement le co\u00fbt et la puissance consomm\u00e9e par rapport \u00e0 n\u2019importe quelle solution actuelle. Cette PLL num\u00e9rique sans diviseur fractionnaire par N emploie une technique d\u2019att\u00e9nuation des parasites \u00e0 faible consommation d\u2019\u00e9nergie ainsi qu\u2019une technique de d\u00e9roulement de phase num\u00e9rique. Ces deux approches contribuent \u00e0 ses excellentes performances.<\/p>\n<hr \/>\n<p align=\"left\">\u00ab\u00a0Nous sommes fiers d\u2019avoir d\u00e9velopp\u00e9 cette ADPLL \u00e0 faible consommation de classe mondiale avec imec. Nous d\u00e9veloppons l\u2019\u00e9metteur-r\u00e9cepteur RF avec cette ADPLL et int\u00e9grons les capteurs de puissance ultra faible et les microcontr\u00f4leurs de ROHM au module Sensor Edge,\u00a0\u00bb a d\u00e9clar\u00e9 Isao&nbsp;Matsumoto, Directeur, Si\u00e8ge de production LSI\/Si\u00e8ge de d\u00e9veloppement produit LSI chez ROHM. \u00ab\u00a0Nous esp\u00e9rons qu\u2019ils seront des leaders du march\u00e9 de l\u2019IoT.\u00a0\u00bb<\/p>\n<p align=\"left\">\u00ab\u00a0Nous sommes ravis de notre collaboration avec ROHM qui nous a permis de relever un d\u00e9fi in\u00e9dit et d\u2019offrir une ADPLL venant parfaire le portefeuille d\u2019imec de conceptions radio dot\u00e9es de la plus faible puissance au monde. Gr\u00e2ce \u00e0 ce succ\u00e8s, la PLL tout-num\u00e9rique s\u2019est transform\u00e9e en une alternative m\u00fbre et sup\u00e9rieure aux PLL analogiques courantes,\u00a0\u00bb a comment\u00e9 Kathleen&nbsp;Philips, Directrice du programme Perceptive Systems for an Intuitive IoT chez imec\/Holst Centre. \u00ab\u00a0L\u2019ADPLL est pr\u00eate pour une production de masse et est en cours d\u2019exp\u00e9dition chez nos partenaires industriels en vue de son int\u00e9gration aux produits.\u00a0\u00bb<\/p>\n<p align=\"left\"><a href=\"http:\/\/www.rohm.com\/eu\" target=\"_blank\" rel=\"noopener\">www.rohm.com\/eu<\/a><\/p>\n<p align=\"left\"><a href=\"http:\/\/www.imec.be\" target=\"_blank\" rel=\"noopener\">www.imec.be<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lors de l\u2019\u00e9dition 2017 de la conf\u00e9rence ISSCC \u00e0 San Francisco, ROHM, imec, un des principaux centres de recherche et d\u2019innovation en nano\u00e9lectronique et en technologies num\u00e9riques, et Holst Centre, cr\u00e9\u00e9 par imec et TNO, ont pr\u00e9sent\u00e9 une boucle \u00e0 phase asservie tout-num\u00e9rique (ADPLL) dans un format r\u00e9duit et \u00e0 consommation infra-mW pour \u00e9metteurs-r\u00e9cepteurs radio de l\u2019Internet des objets (IoT). <\/p>\n","protected":false},"author":9,"featured_media":182681,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[901,915],"domains":[47],"ppma_author":[1141],"class_list":["post-182680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","tag-energyharvesting-fr","tag-wireless-communications-fr","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Boucle \u00e0 phase asservie tout-num\u00e9rique ultra basse consommation ...<\/title>\n<meta name=\"description\" content=\"Lors de l\u2019\u00e9dition 2017 de la 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