SAW Components Data Sheet B4908 SAW Components B4908 158,55 MHz Low-Loss Filter for Mobile Communication Data Sheet Ceramic package QCC8B Features ● Low-loss IF filter for mobile telephone, transmit ● ● ● ● path Low amplitude ripple Usable passbands 1,3 MHz Balanced and unbalanced operation possible Ceramic package for Surface Mounted Technology (SMT) Terminals ● Ni, gold-plated Dimensions in mm, approx. weight 0,07 g Pin configuration 2 3 6 7 4,8 Input Input Output Output Case - Ground 1,5 To be grounded Type Ordering code B4908 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 2 ˚C ˚C V dBm source impedance 50 Ω Jan 22, 2001 SAW Components B4908 158,55 MHz Low-Loss Filter for Mobile Communication Data Sheet Characteristics T = -40 to +85 ˚C ZS = 470 Ω || 470 nH, single ended (pin 3) ZL = 470 Ω || 680 nH, balanced Operating temperature range: Terminating source impedance: Terminating load impedance: min. fc typ. max. — 158,55 Maximum insertion attenuation αmax 157,90 ... 159,20 MHz — 2,5 3,0 dB Amplitude ripple in passband (p-p) ∆α 157,90 ... 159,20 MHz — 0,5 1,0 dB — 0,6 1,5 ˚rms Center frequency Phase linearity deviation 157,90 ... — MHz ∆φ 159,20 MHz αmin 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 3 50 40 30 14 35 45 Jan 22, 2001 55 52 39 16 40 70 — — — — — — dB dB dB dB dB dB SAW Components B4908 158,55 MHz Low-Loss Filter for Mobile Communication Data Sheet Transfer function (wideband): Transfer function (narrowband): 4 Jan 22, 2001 SAW Components B4908 158,55 MHz Low-Loss Filter for Mobile Communication Data Sheet Transfer function (passband ) : 5 Jan 22, 2001 SAW Components B4908 158,55 MHz Low-Loss Filter for Mobile Communication Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, OFW E MF P.O. Box 80 17 09, D-81617 München 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