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| SAW Components Data Sheet B4908 SAW Components Low-Loss Filter for Mobile Communication Data Sheet Features q Low-loss IF filter for mobile telephone, transmit q q q q B4908 158,55 MHz Ceramic package QCC8B path Low amplitude ripple Usable passbands 1,3 MHz Balanced and unbalanced operation possible Ceramic package for Surface Mounted Technology (SMT) Terminals q Ni, gold-plated Dimensions in mm, approx. weight 0,07 g Pin configuration 2 3 6 7 4,8 1,5 Input Input Output Output Case - Ground To be grounded Type B4908 Ordering code B39161-B4908-Z810 Marking and Package according to C61157-A7-A46 Packing according to F61074-V8037-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power T Tstg VDC PIN - 40 / + 85 - 40 / + 85 0 10 C C V dBm source impedance 50 2 Jan 22, 2001 SAW Components Low-Loss Filter for Mobile Communication Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: B4908 158,55 MHz T = -40 to +85 C ZS = 470 || 470 nH, single ended (pin 3) ZL = 470 || 680 nH, balanced min. typ. 158,55 max. -- MHz Center frequency fc -- Maximum insertion attenuation max 157,90 ... 159,20 MHz Amplitude ripple in passband (p-p) 157,90 ... 159,20 MHz Phase linearity deviation 157,90 ... Attenuation 0,00 130,00 139,00 165,55 178,00 475,00 ... ... ... ... ... ... 130,00 139,00 151,55 178,00 475,00 1000,00 MHz MHz MHz MHz MHz MHz 159,20 MHz min -- 2,5 3,0 dB -- 0,5 1,0 dB -- 0,6 1,5 rms 50 40 30 14 35 45 55 52 39 16 40 70 -- -- -- -- -- -- dB dB dB dB dB dB 3 Jan 22, 2001 SAW Components Low-Loss Filter for Mobile Communication Data Sheet B4908 158,55 MHz Transfer function (wideband): Transfer function (narrowband): 4 Jan 22, 2001 SAW Components Low-Loss Filter for Mobile Communication Data Sheet B4908 158,55 MHz Transfer function (passband ) : 5 Jan 22, 2001 SAW Components Low-Loss Filter for Mobile Communication Data Sheet B4908 158,55 MHz Published by EPCOS AG Surface Acoustic Wave Components Division, OFW E MF P.O. Box 80 17 09, D-81617 Munchen (c) EPCOS AG 1999. All Rights Reserved. As far as patents or other rights of third parties are concerned, liability is only assumed for components per se, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. 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. 6 Jan 22, 2001 |
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