SAW Components Data Sheet B3640 SAW Components B3640 Low-Loss Filter 238,0 MHz Data Sheet Ceramic package QCC12 Features ● ● ● ● Low-loss IF filter for DCS base station Tx path Temperature stable Ceramic SMD package Terminals ● Gold plated Dim. in mm, aprox. weight 0,4 g Pin configuration 1, 10 7 4 3, 9 2, 6, 8, 12 Input (balanced) Output Output ground To be grounded Case ground 5, 11 Not connected Type Ordering code B3640 B39231-B3640-Z510 Marking and Package according to C61157-A7-A55 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power T Tstg VDC Ps – 20/+ 75 – 40/+ 85 10 10 2 ˚C ˚C V dBm Apr 04, 2001 Packing according to F61074-V8026-Z000 SAW Components B3640 Low-Loss Filter 238,0 MHz Data Sheet Characteristics TA = -5 - 75 ˚C ZS = 200 Ω and matching network. ZL = 50 Ω and matching network Operating temperature range: Terminating source impedance: Terminating load impedance: Nominal frequency fN Minimum insertion attenuation (including matching network) αmin Amplitude ripple (p-p) ∆α fN ± 100 kHz fN ± 300 kHz min. typ. max. — 238,0 — 7 8,5 — — τ Absolute group delay — 0,3 1,9 1,5 MHz 9,5 dB 1,1 3,0 dB dB 3 µs ∆τ Group delay variation fN ± 100 kHz fN ± 300 kHz — — 50 90 150 250 ns ns 5 10 25 30 40 8 25 45 41 42 — — — — — dB dB dB dB dB Relative attenuation (relative to αmin) fN ± 0,6 MHz ... fN ± 0,8 MHz fN ± 0,8 MHz ... fN ± 1,8 MHz fN ± 1,8 MHz ... fN ± 6,0 MHz fN ± 6,0 MHz ... fN ± 20 MHz fN ± 20 MHz ... fN ± 120 MHz αrel Temperature coefficient of frequency 1) Turnover temperature TCf — –0,036 — ppm/K2 T0 — 30 — ˚C 1) Temperature dependance of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2) 3 Apr 04, 2001 SAW Components B3640 Low-Loss Filter 238,0 MHz Data Sheet Matching network (element values depend on pcb layout) Cp1 = 10 pF Ls2 = 22 nH Ls3 = 27 nH Ls4 = 33 nH Cp5 = 22 pF 4 Apr 04, 2001 SAW Components B3640 Low-Loss Filter 238,0 MHz Data Sheet Normalized frequency response Normalized frequency response (pass band) 5 Apr 04, 2001 SAW Components B3640 Low-Loss Filter 238,0 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW MC IS 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 Apr 04, 2001