IEC 60862-2-ed.3.0

Detail information

Designation: IEC 60862-2-ed.3.0

Publication date: 07/05/2012

Pages: 124

Country: International technical standard

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Anotation

IEC 60862-2:2012 gives practical guidance on the use of SAW filters which are used in telecommunications, measuring equipment, radar systems and consumer products. IEC 60862-1 should be referred to for general information, standard values and test conditions. This part of IEC 60862 includes various kinds of filter configuration, of which the operating frequency range is from approximately 10 MHz to 3 GHz and the relative bandwidth is about 0,02 % to 50 % of the centre frequency. It is not the aim of this standard to explain theory, nor to attempt to cover all the eventualities which may arise in practical circumstances. This standard draws attention to some of the more fundamental questions, which should be considered by the user before he places an order for a SAW filter for a new application. Such a procedure will be the users insurance against unsatisfactory performance. This edition includes the following significant technical changes with respect to the previous edition: - Clause 3 "Terms and definitions" has been deleted to be included in the next edition of IEC 60862-1; - the tapered IDT filter and the RSPUDT filter have been added to the clause of SAW transversal filters. Also DART, DWSF and EWC have been added as variations of SPUDT; - the balanced connection has been added to the subclause of coupled resonator filters; - recent substrate materials have been described; - a subclause about packaging of SAW filters has been added. La CEI 60862-2:2012 indique des lignes directrices concernant lemploi pratique des filtres a OAS pour lutilisation dans les telecommunications, dans les equipements de mesure, les systemes radars et les produits de grande consommation. Il convient de se reporter a la CEI 60862-1 pour les informations generales, les valeurs normalisees et les conditions dessais. Cette partie de la CEI 60862 englobe les divers types de configuration de filtre dont la gamme de frequences de fonctionnement setend approximativement de 10 MHz a 3 GHz et la largeur de bande relative est denviron 0,02 % a 50 % de la frequence centrale. Cette norme na pas pour but de developper des notions theoriques ni de couvrir tous les cas qui peuvent se poser en pratique. Cette norme attire lattention sur certaines questions plus fondamentales quil convient que lutilisateur examine avant de commander un filtre a OAS pour une nouvelle application. Une telle procedure servira de garantie a lutilisateur en cas de fonctionnement non satisfaisant. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: - lArticle 3 "Termes et definitions" a ete supprime en vue detre inclus dans la prochaine edition de la CEI 60862-1; - le filtre a TID conique et le filtre a TUDMR ont ete ajoutes a larticle des filtres transversaux a OAS. De meme, les DART, DWSF et EWC ont ete ajoutes en tant que variantes de TUDM; - la connexion symetrique a ete ajoutee au paragraphe des filtres a resonateurs couples; - les materiaux recents pour substrats ont ete decrits; - un paragraphe relatif a lemballage des filtres a OAS a ete ajoute.