SAW Components Data Sheet B3861 SAW Components B3861 Bandpass Filter 250,0 MHz Data Sheet Ceramic package DCC12A Features 7,62 IF filter for W-CDMA base station Usable bandwidth 4,0 MHz Temperature stable Ceramic SMD package 1,0 1 2 3 4 5 2,3 1,7 ● ● ● ● bottom view 10 Terminals 9 8 7 6 3,81 1,6 ● Gold plated side view 6,5 top view 13,3 Dimensions in mm, appr. weight 0,4 g Pin configuration 10 1 5 6 2, 4, 7, 9 3, 8 Input Input ground Output Output ground Case ground To be grounded Type Ordering code B3861 B39251-B3861-H510 Marking and Package according to C61157-A7-A94 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power (average) (peak < 10ns) TA Tstg VDC Ps -40 / +85 -40 / +85 0 10 ˚C ˚C V dBm 20 dBm 2 Sep 24, 2002 Packing according to F61074-V8163-Z000 SAW Components B3861 Bandpass Filter 250,0 MHz Data Sheet Characteristics TA = -10 ... +85 ˚C ZS = 50 Ω and matching network ZL = 50 Ω and matching network 125 kHz Operating temperature: Terminating source impedance: Terminating load impedance: Group delay aperture: fN Nominal frequency Maximum insertion attenuation in passband1) αmax (including matching network) min. typ. max. — 250,0 — MHz — 16,3 19,0 dB — MHz Passband width αrel ≤ 1 dB B1dB 4,2 ∆α Amplitude ripple (p-p) fN ± 2,0 MHz — 0,5 1,0 dB ∆τ Group delay ripple (p-p) fN ± 2,0 MHz Relative attenuation (relative to αfN) fN ± 3,0 MHz ... fN ± 3,5 MHz fN ± 3,5 MHz ... fN ± 4,0 MHz fN ± 4,0 MHz ... fN ± 6,0 MHz fN + 6,0 MHz ... fN + 12,5 MHz fN + 12,5 MHz ... fN + 14,3 MHz fN + 13,4 MHz fN + 14,3 MHz ... fN + 24,6 MHz fN + 24,6 MHz ... fN + 29,0 MHz 0,1 MHz ... 244 MHz 279 MHz ... 2,5 GHz VSWR 4,0 — 120 150 ns 11 21 24 40 54 54 40 54 40 30 15 35 35 45 57 65 47 57 50 40 — — — — — — — — — dB dB dB dB dB dB dB dB dB αrel fN ± 2,0 MHz — 1) matched with coilcraft CS0805 inductors 3 Sep 24, 2002 1,5:1 2:1 SAW Components B3861 Bandpass Filter 250,0 MHz Data Sheet min. typ. max. — — 2,3 || 4,1 1,3 || 12,2 — — kΩ || pF kΩ || pF TCf — – 0,036 — ppm/K2 T0 — — ˚C Impedance at fN (without matching) Input: ZIN = RIN || CIN Output: ZOUT= ROUT || COUT Temperature coefficient of frequency2) Turnover temperature 2) Temperature dependance of fc: 17 fc(TA) = fc(T0)(1 + TCf(TA – T0)2) Matching network to 50 Ω (element values depend on pcb layout) Ls2 Cp1 Lp1 Ls5 Lp3 Lp4 Cp6 Lp1 = 27 nH Lp4 = 33 nH Ls2 = 120 nH Ls5 = 120 nH Lp3 = 100 nH Cp6 = 2,7 pF 4 Sep 24, 2002 SAW Components B3861 Bandpass Filter 250,0 MHz Data Sheet Normalized frequency response Normalized frequency response 5 Sep 24, 2002 SAW Components B3861 Bandpass Filter 250,0 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC IS 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. 6 Sep 24, 2002