SAW Components Data Sheet B3685 SAW Components B3685 Low-Loss Filter 90,00 MHz Data Sheet Ceramic package QCC12B Features ● Low-loss IF filter for GSM base station ● Tx path ● Ceramic SMD package Terminals ● Gold plated Dimensions in mm, appr. weight 0,20 g Pin configuration 12, 10 4, 6 1, 2, 7, 8 3, 9 Balanced Input Balanced Output Ground Case ground Type Ordering code B3685 B39900-B3685-Z910 Marking and Package according to C61157-A7-A52 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power TA Tstg VDC Ps -20 / +70 -30 / +85 0 10 2 ˚C ˚C V dBm Aug 07, 2000 Packing according to F61074-V8038-Z000 SAW Components B3685 Low-Loss Filter 90,00 MHz Data Sheet Characteristics TA = 0 - 70 ˚C ZS = 200 Ω balanced and matching network ZL = 200 Ω balanced and matching network Operating temperature: Terminating source impedance: Terminating load impedance: Nominal frequency fN Insertion attenuation at fN (including matching network) αN min. typ. max. — 90,0 — 4,0 5,3 6,0 MHz dB Passband width αrel ≤ 0,5 dB B0,5dB Amplitude ripple (p-p) fN ± 100 kHz ∆α — τ — 740 — ns ∆τ — 30 100 ns 10 30 18 44 — — dB dB — – 18 — ppm/K Absolute group delay (at fN) Group delay ripple (p-p) fN ± 100 kHz Relative attenuation (relative to αN) fN ± 1,8 MHz ... fN ± 6,0 MHz fN ± 6,0 MHz ... fN ± 20,0 MHz αrel Temperature coefficient of frequency TCf 3 200 Aug 07, 2000 850 0,15 — 0,5 kHz dB SAW Components B3685 Low-Loss Filter 90,00 MHz Data Sheet Matching network to 200 Ω (element values depend on pcb layout) 1:4 4:1 Ls1 = 180 nH Lp3 = 180 nH Lp2 = 180 nH Ls4 = 180 nH 4 Aug 07, 2000 SAW Components B3685 Low-Loss Filter 90,00 MHz Data Sheet Transfer function Transfer function (pass band) 5 Aug 07, 2000 SAW Components B3685 Low-Loss Filter 90,00 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, OFW E NK 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 Aug 07, 2000