SAW Components Data Sheet B3841 SAW Components B3841 Low-Loss Filter 174,2 MHz Data Sheet Ceramic package DCC18 Features ■ ■ ■ ■ Low-loss IF filter for GSM base station Temperature stable Ceramic SMD package Unbalanced or balanced operation Terminals ■ Gold plated Dimensions in mm, approx. weight 0,8 g Pin configuration 10 1 5 6 3, 8 2, 4, 7, 9 Input or balanced input Input ground or balanced input Output or balanced output Output ground or balanced output Ground Case ground Type Ordering code B3841 B39171-B3841-U210 Marking and Package according to C61157-A7-A54 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power T Tstg VDC Ps –40 / +85 –40 / +85 0 10 2 ˚C ˚C V dBm Feb 26, 2002 Packing according to F61074-V8069-Z000 SAW Components B3841 Low-Loss Filter 174,2 MHz Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: T = -5 to +85 ˚C ZS = 250 Ω || 43 nH ZL = 400 Ω || 92 nH min. typ. max. — Nominal frequency fN — 174,2 Minimum insertion attenuation αmin — 6,2 8,0 MHz dB 3dB bandwidth αrel ≤ 3,0 dB B3,0dB fN ± 67 kHz fN ± 125 kHz fN ± 200 kHz Amplitude ripple (p-p) Absolute group delay (at fN ) fN ± 200 kHz Group delay ripple (p-p) Relative attenuation (relative to αmin) fN ± 469 kHz ... fN ± 600 kHz fN ± 600 kHz ... fN ± 860 kHz fN ± 860 kHz ... fN ± 1200 kHz 20 168,2 fN + 1200 180,2 MHz MHz kHz MHz ... ... ... ... 168,2 fN − 1200 180,2 400 1) Temperature dependance of fc: 730 — kHz ∆α ∆α ∆α — — — 0,1 0,3 0,6 0,25 dB 1,0 dB 1,2 dB τ — 2,3 2,6 ∆τ — 190 260 ns 4 11 20 10 20 30 — — — dB dB dB 50 40 40 50 60 50 43 70 — — — — dB dB dB dB 10 12 — dB TCf — –0,036 — ppm/K2 T0 — 40 — ˚C µs αrel MHz kHz MHz MHz Return loss (at fN ) Temperature coefficient of frequency Turnover temperature 660 1) fc(TA) = fc(T0)(1 + TCf(TA – T0)2) 3 Feb 26, 2002 SAW Components B3841 Low-Loss Filter 174,2 MHz Data Sheet Matching network to 50 Ω (Element values depend on PCB layout) Cp1 = 47 pF Ls2 = 39 nH Ls3 = 36 nH Cp4 = 56 pF 4 Feb 26, 2002 SAW Components B3841 Low-Loss Filter 174,2 MHz Data Sheet Normalized frequency response Normalized frequency response (pass band) 5 Feb 26, 2002 SAW Components B3841 Low-Loss Filter 174,2 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 2002. All Rights Reserved. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. 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 Feb 26, 2002