SAW Device WF555E0037KB For High Precision Industry ■ Features ● IF SAW filter for digital terrestrial broadcasting. ● With a low-band ripple. ● A low group delay distortion. ● Excellent steepness characteristics. ■ Specifications Model WF555E0037KB Item min. typ. Nominal frequency : f0 (MHz) Minimum insertion loss (f0)(dB) Ripple (f0±2.79 MHz)(dB) Guaranteed attenuation (dB) f0±3.2 to +15 MHz − 31.1 34 − 0.25 0.5 32 36 − Operating temperature range (°C) –10 to +60 Terminating impedance (Ω) 50 ■ Dimensions ■ Characteristics mm CH1 A/R LOG MAG REF –31.510 dB Pin connections CH1 7.6 max 47.0±0.3 GND INPUT OUTPUT 0.25 dB/ 0.500 dB/ CENTER(MHz) 37.1500 SPAN(MHz) 10.000 [Out-of-band characteristics] 6.5±0.5 51.5 max [In-band characteristics] 31.5 max 27.4±0.3 Others 2 7 CH1 A/R LOG MAG REF –31.510 dB 10.000 dB/ 3 4 5 9 8 7 6 31.5 max 2 20.32±0.2 9–φ0.6±0.05 51.5 max 35.56±0.2 25.4±0.2 1 max. 37.15 CH1 3–φ2.2 -1- CENTER(MHz) 37.1500 SPAN(MHz) 30.000 13B_1227_WF555E0037KB_e