SAW Device WFB40A1950CD For Fixed Communication ■ Features ● RF SAW Filter for WCDMA Base Station (Band 1). ● Flat pass-band characteristics. ● Compact and light. ■ Specifications Model WFB40A1950CD Item min. typ. − 1950 − 1920 − 1980 1920 to 1980 MHz − 2.0 2.5 1920 to 1980 MHz 1920 to 1980 MHz 1920 to 1980 MHz 1500 to 1540 MHz Guaranteed attenuation (dB) 1540 to 1570 MHz (from the throughlevel) 2110 to 2170 MHz Operating temperature range (°C) − − − 42 35 13 0.6 2.0 6 44 43 25 −30 to +85 1.6 2.4 30 − − − Nominal frequency : fn (MHz) Passband width Maximum insertion loss (dB) In-band ripple (dB) VSWR Group delay distortion (ns) Terminating impedance (Ω) max. 50 ■ Dimensions ■ Characteristics mm CH1 A/R LOG MAG REF 0.000 dB Terminal land connections 3.0±0.2 GND INPUT OUTPUT 1.45 max 3.0±0.2 Others 2 5 5.000 dB/ CH1 1.15 ■ Matching Circuit 1.15 1.5 2 6 5 4 50Ω 0.8 0.7 5 SAW 2.0 12–(0.10) 4.0 1.5±0.15 3 5–0.85±0.15 6–0.6±0.15 2 SPAN(MHz) 1000 Land pattern (Typical) 2–1.6±0.15 1 CENTER(MHz) 1950 4.3nH 13nH 50Ω 0.8 - 40 - 12A_0903_WFB40A1950CD_e