SAW Components Data Sheet B3853 SAW Components B3853 Low-Loss Filter 141,0 MHz Data Sheet Ceramic package DCC18 Features ■ ■ ■ ■ Low-loss IF filter for CDMA base station Temperature stable Ceramic SMD package Unbalanced or balanced operation Terminals ■ Gold plated Dimensions in mm, approx. weight 0,8 g Pin configuration 1 10 6 5 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 B3853 B39141-B3853-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 5 10 2 ˚C ˚C V dBm Sep 30, 2002 Packing according to F61074-V8166-Z000 SAW Components B3853 Low-Loss Filter 141,0 MHz Data Sheet Characteristics Operating temperature range: Terminating source impedance: Terminating load impedance: T = 0 to +85 ˚C ZS = 50 Ω and external matching network ZL = 50 Ω and external matching network min. typ. max. Nominal frequency fN — 141,0 — MHz Minimum insertion attenuation αN — 11,0 13,0 dB — MHz 3,75 dB bandwidth αrel ≤ 3,75dB B3,75dB 1,18 1,32 Amplitude ripple (p-p) fN ± 525 kHz ∆α — 0,2 1,0 dB Phase Linearity (rms) fN ± 630 kHz ∆ϕ — 1,0 2,0 deg τ — 2,75 ∆τ — @ fN Absolute group delay Group delay ripple (p-p) fN ± 525 kHz Relative attenuation (relative to αN) 50 MHz ... 120 MHz 120 MHz ... fN − 1350 kHz fN − 1350 kHz ... fN − 1250 kHz fN + 1250 kHz ... fN + 1750 kHz fN + 1750 kHz ... 175 MHz 175 MHz ... 500 MHz µs 100 300 ns 50 45 41 41 45 60 60 52 45 45 48 70 — — — — — — dB dB dB dB dB dB 10 15 — dB IP3 40 45 — dB TCf — –0,036 — ppm/K2 T0 — 42,5 — ˚C αrel 1) fN ± 525 kHz Return loss 3rd-order intercept point Temperature coefficient of frequency Turnover temperature 1) — 2) Except for two peaks around 144 and 146 MHz with typically 45dB 2) Temperature dependance of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2) 3 Sep 30, 2002 SAW Components B3853 Low-Loss Filter 141,0 MHz Data Sheet Normalized frequency response Normalized frequency response (pass band) 4 Sep 30, 2002 SAW Components B3853 Low-Loss Filter 141,0 MHz Data Sheet Normalized frequency response (wide band) 5 Sep 30, 2002 SAW Components B3853 Low-Loss Filter 141,0 MHz Data Sheet Matching network to 50 Ω (Element values depend on PCB layout) Cp1 = 56 pF Ls2 = 68 nH // 2.2 pF Ls3 = 68 nH // 1.2 pF Cp4 = 56 pF 6 Sep 30, 2002 SAW Components B3853 Low-Loss Filter 141,0 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. 7 Sep 30, 2002