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| SAW Components Data Sheet B7838 SAW Components Low-Loss Filter for Mobile Communication Data Sheet B7838 881,5 MHz Chip sized SAW package QCS5C Features s Low-loss RF filter for mobile telephone 0.735 0,075 2 3 0,68 GSM850/AMPS system, receive path Usable passband 25 MHz Unbalanced to balanced operation Excellent symmetry Impedance transformation from 50 to 100 s Suitable for GPRS class 1 to12 s Ceramic package for Surface Mounted Technology (SMT) s s s s 0,38 0,075 0,44 5 4 bottom view 1 side view 2,0 1,4 Terminals s Ni, gold-plated top view Dimensions in mm, approx. weight 0,007g Pin configuration 1 3, 4 2, 5 Unbalanced input Balanced output To be grounded Type B7838 Ordering code 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 Low-Loss Filter for Mobile Communication Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: B7838 881,5 MHz T = +25 C ZS = 50 (unbalanced) ZL = 100 (balanced) min. typ. 881,5 max. -- MHz Center frequency Maximum insertion attenuation 869,0 ... 894,0 Amplitude ripple (p-p) 869,0 ... 894,0 Input return loss 869,0 ... 894,0 Output return loss 869,0 ... 894,0 Output amplitude balance (|S31/S21|) 869,0 ... 894,0 MHz MHz MHz fC max MHz -- -- 1,7 2,0 dB -- 0,5 0,8 dB 10,0 11,0 -- dB 10,0 11,0 -- dB MHz -0,5 0 0,5 dB Output phase balance ((S31)-(S21)+180) 869,0 ... 894,0 MHz Attenuation 0,0 840,0 914,0 950,0 ... 840,0 ... 849,0 ... 950,0 ...6000,0 MHz MHz MHz MHz -5 0 5 degree 47 47 24 45 55 50 27 55 -- -- -- -- dB dB dB dB 3 Mar 04, 2004 SAW Components Low-Loss Filter for Mobile Communication Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: B7838 881,5 MHz T = -30 to +85 C ZS = 50 (unbalanced) ZL = 100 (balanced) min. typ. 881,5 max. -- MHz Center frequency Maximum insertion attenuation 869,0 ... 894,0 Amplitude ripple (p-p) 869,0 ... 894,0 Input return loss 869,0 ... 894,0 Output return loss 869,0 ... 894,0 Output amplitude balance (|S31/S21|) 869,0 ... 894,0 MHz MHz MHz fC max MHz -- -- 1,9 2,2 dB -- 0,7 1,0 dB 10,0 11,0 -- dB 10,0 11,0 -- dB MHz -0,5 0 0,5 dB Output phase balance ((S31)-(S21)+180) 869,0 ... 894,0 MHz Attenuation 0,0 840,0 914,0 950,0 ... 840,0 ... 849,0 ... 950,0 ...6000,0 MHz MHz MHz MHz -5 0 5 degree 47 40 24 45 55 45 27 55 -- -- -- -- dB dB dB dB 4 Mar 04, 2004 SAW Components Low-Loss Filter for Mobile Communication Data Sheet Transfer function (narrowband) B7838 881,5 MHz Transfer function (wideband) 5 Mar 04, 2004 SAW Components Low-Loss Filter for Mobile Communication Data Sheet Matching (measurement) B7838 881,5 MHz 6 Mar 04, 2004 SAW Components Low-Loss Filter for Mobile Communication Data Sheet Output amplitude balance (|S31/S21|) B7838 881,5 MHz Output phase balance ((S31)-(S21)+180) 7 Mar 04, 2004 SAW Components Low-Loss Filter for Mobile Communication Data Sheet B7838 881,5 MHz Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC PD P.O. Box 80 17 09, 81617 Munich, GERMANY (c) 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 |
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