SAW Components Data Sheet B7843 SAW Components B7843 1855,00 MHz Low-Loss Filter for Mobile Communication Data Sheet Chip sized SAW package Features 0.735 0,38 2 1 0,44 3 5 4 Terminals ■ Ni, gold-plated bottom view 0,68 ■ Korean PCS systems, receive path Usable passband 30 MHz Unbalanced to balanced operation Impedance transformation from 50 Ω to 100 Ω Ceramic package for Surface Mounted technology (SMT) 0,075 ■ ■ ■ 0,075 side view 1,4 ■ Low-loss RF filter for mobile telephone top view 2,0 Dimensions in mm, approx. weight 0,009 g Pin configuration 1 3, 4 2,5 Input Balanced Output Case ground 1 4 2,5 3 Type Ordering code Marking and Package Packing B7843 B39192-B7843-C710 according to C61157-A7-A111 according to F61074-V8151-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Input power max. T Tstg VDC PIN – 30/+ 85 – 40/+ 85 0 0 2 ˚C ˚C V dBm CDMA signal Nov 05, 2003 SAW Components B7843 1855,00 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics T = -30 to + 85˚C ZS = 50 Ω (unbalanced) ZL = 100Ω (balanced) Operating temperature range: Terminating source impedance: Terminating load impedance: min. typ. max. — 1855,0 — — 3,0 3,2 dB MHz — 1,3 1,5 dB Output phase balance (φ(S31)−φ(S21)+180˚) 1840,0 ...1870,0 MHz -10 fc Center frequency Maximum insertion attenuation 1840,0 ...1870,0 Amplitude ripple (p-p) 1840,0 ...1870,0 Output amplitude balance (|S31/S21|) 1840,0 ...1870,0 MHz αmax MHz ∆α — — 10 MHz -1,0 1,0 1840,0 ...1870,0 MHz — 2,0 2,1 1840,0 ...1870,0 MHz — 2,2 2,3 100,0 1750,0 1930,0 1960,0 MHz MHz MHz MHz 45,0 34,0 30,0 40,0 3 Nov 05, 2003 ˚ dB Input VSWR Output VSWR α Attenuation ...1750,0 ...1780,0 ...1960,0 ...6000,0 50,0 36,0 38,0 43,0 — — — — dB dB dB dB SAW Components B7843 1855,00 MHz Low-Loss Filter for Mobile Communication Data Sheet Transfer function (measurement) Transfer function (wideband measurementt) 4 Nov 05, 2003 SAW Components B7843 1855,00 MHz Low-Loss Filter for Mobile Communication Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC WT P.O. Box 80 17 09, 81617 Munich, GERMANY EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices. 5 Nov 05, 2003