SAW Components Data Sheet B7838 SAW Components B7838 881,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Chip sized SAW package QCS5C Features 0.735 0,075 0,38 5 0,44 3 1 0,075 2 bottom view 0,68 GSM850/AMPS system, receive path Usable passband 25 MHz Unbalanced to balanced operation Excellent symmetry Impedance transformation from 50 Ω to 100 Ω ■ Suitable for GPRS class 1 to12 ■ Ceramic package for Surface Mounted Technology (SMT) ■ ■ ■ ■ side view 1,4 ■ Low-loss RF filter for mobile telephone top view 4 2,0 Terminals ■ Ni, gold-plated Dimensions in mm, approx. weight 0,007g Pin configuration 1 3, 4 2, 5 Unbalanced input Balanced output To be grounded Type Ordering code B7838 B39881-B7838-C710 Marking and Package according to C61157-A7-A111 Packing according to F61074-V8151-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage ESD voltage Input power at GSM850, GSM900, GSM1800 and GSM1900 Tx bands T Tstg VDC V*ESD PIN – 30 / + 85 – 40 / + 85 5 100* 15 ˚C ˚C V V dBm Machine Model, 10 pulses peak power of GSM signal, duty cycle 4:8 * -acc. to JESD22-A115A (Machine Model), 10 negative & 10 positive pulses 2 Mar 04, 2004 SAW Components B7838 881,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics T = +25 ˚C ZS = 50 Ω (unbalanced) ZL = 100 Ω (balanced) Operating temperature range: Terminating source impedance: Terminating load impedance: min. fC Center frequency Maximum insertion attenuation 869,0 ... 894,0 typ. max. — 881,5 — MHz — 1,7 2,0 dB 0,5 0,8 dB αmax MHz ∆α Amplitude ripple (p-p) 869,0 ... 894,0 MHz — 869,0 ... 894,0 MHz 10,0 11,0 — dB 869,0 ... 894,0 MHz 10,0 11,0 — dB Output amplitude balance (|S31/S21|) 869,0 ... 894,0 MHz -0,5 0 0,5 dB -5 0 5 degree 47 47 24 45 55 50 27 55 — — — — Input return loss Output return loss Output phase balance (φ(S31)−φ(S21)+180˚) 869,0 ... 894,0 MHz α Attenuation 0,0 840,0 914,0 950,0 ... 840,0 ... 849,0 ... 950,0 ...6000,0 MHz MHz MHz MHz 3 Mar 04, 2004 dB dB dB dB SAW Components B7838 881,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics T = -30 to +85 ˚C ZS = 50 Ω (unbalanced) ZL = 100 Ω (balanced) Operating temperature range: Terminating source impedance: Terminating load impedance: min. Center frequency fC Maximum insertion attenuation 869,0 ... 894,0 αmax MHz typ. max. — 881,5 — MHz — 1,9 2,2 dB 0,7 1,0 dB ∆α Amplitude ripple (p-p) 869,0 ... 894,0 MHz — 869,0 ... 894,0 MHz 10,0 11,0 — dB 869,0 ... 894,0 MHz 10,0 11,0 — dB Output amplitude balance (|S31/S21|) 869,0 ... 894,0 MHz -0,5 0 0,5 dB -5 0 5 degree 47 40 24 45 55 45 27 55 — — — — Input return loss Output return loss Output phase balance (φ(S31)−φ(S21)+180˚) 869,0 ... 894,0 MHz α Attenuation 0,0 840,0 914,0 950,0 ... 840,0 ... 849,0 ... 950,0 ...6000,0 MHz MHz MHz MHz 4 Mar 04, 2004 dB dB dB dB SAW Components B7838 881,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Transfer function (narrowband) Transfer function (wideband) 5 Mar 04, 2004 SAW Components B7838 881,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Matching (measurement) 6 Mar 04, 2004 SAW Components B7838 881,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Output amplitude balance (|S31/S21|) Output phase balance (φ(S31)−φ(S21)+180˚) 7 Mar 04, 2004 SAW Components B7838 881,5 MHz Low-Loss Filter for Mobile Communication Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC PD P.O. Box 80 17 09, 81617 Munich, GERMANY EPCOS AG 2004. 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. 8 Mar 04, 2004