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1. WO2011006873 - SAW FILTER CIRCUIT HAVING IMPROVED ESD RESISTANCE

Publication Number WO/2011/006873
Publication Date 20.01.2011
International Application No. PCT/EP2010/059986
International Filing Date 12.07.2010
IPC
H03H 9/64 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
46Filters
64using surface acoustic waves
CPC
H03H 9/02921
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
02Details
02535of surface acoustic wave devices
02818Means for compensation or elimination of undesirable effects
02921Measures for preventing electric discharge due to pyroelectricity
H03H 9/6433
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
9Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
46Filters
64using surface acoustic waves
6423Means for obtaining a particular transfer characteristic
6433Coupled resonator filters
Applicants
  • EPCOS AG [DE]/[DE] (AllExceptUS)
  • THOMAS, Ralf [DE]/[DE] (UsOnly)
  • KUBAT, Franz [DE]/[DE] (UsOnly)
  • DETLEFSEN, Andreas [DE]/[DE] (UsOnly)
  • HAUSER, Markus [DE]/[DE] (UsOnly)
Inventors
  • THOMAS, Ralf
  • KUBAT, Franz
  • DETLEFSEN, Andreas
  • HAUSER, Markus
Agents
  • EPPING HERMANN FISCHER PATENTANWALTSGESELLSCHAFT MBH
Priority Data
10 2009 032 840.813.07.2009DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) SAW-FILTERSCHALTUNG MIT VERBESSERTER ESD-FESTIGKEIT
(EN) SAW FILTER CIRCUIT HAVING IMPROVED ESD RESISTANCE
(FR) CIRCUIT DE FILTRAGE SAW À RÉSISTANCE ESD AMÉLIORÉE
Abstract
(DE)
Es wird eine SAW-Filterschaltung (SAWF) mit verbesserter ESD- Festigkeit angegeben, in der eine Serienverschaltung (SV) aus SAW- Resonatoren zwischen einem ersten Signalport (SP1) und einem DMS- Port (DMSP1, DMSP2) verschaltet ist, wobei die statische Kapazität der Serienverschaltung maximal das Vierfache der statischen Kapazität der damit verschalteten DMS-Wandler beträgt.
(EN)
A SAW filter circuit (SAWF) having improved ESD resistance is provided, in which a series connection (SV) of SAW resonators is interconnected between a first signal port (SP1) and a DMS port (DMSP1, DMSP2), wherein the static capacity of the series connection is no more than four times the static capacity of the DMS converter interconnected therewith.
(FR)
L'invention concerne un circuit de filtrage SAW (SAWF) à résistance ESD améliorée, dans lequel un circuit série (SV) formé de résonateurs SAW est connecté entre un premier port pour signal sortant ou entrant (SP1) et un port DMS (DMSP1, DMSP2), la capacité statique du circuit série atteignant au maximum quatre fois la capacité statique du convertisseur DMS ainsi connecté.
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