SAW Device NEW IF SAW Filter for Digital Terrestrial Broadcasting Mini-satellite For Industrial Use n Features l Compact. l With a low-band ripple. l Excellent steepness characteristics. Pb Free n Specifications Model WFA18B0037KB Item min. typ. Nominal frequency : f0 (MHz) max. 37.15 Minimum loss : IL (dB) − 27.8 33 −2.79 1 dB bandwidth : Lower (MHz) − −2.91 (Minimum loss) : Upper (MHz) +2.79 +2.91 − − 0.5 1.0 In-band deviation (Max. f0±2.79 MHz)(dB) Guaranteed attenuation f0−15 to f0−3.2 MHz (dB) 30 33 − (Minimum loss standard) f0+3.2 to f0+15 MHz (dB) 30 33 − Operating temperature range (°C) −10 to +60 Terminating impedance (Ω) 50 (with matching) n Dimensions n Characteristics mm PAD NO. CONNECTION GND 1 INPUT 3 OUTPUT 1.000 dB/ 0.5±0.3 5.0–φ0.45±0.1 45.5max. 43.0±0.5 CH1 5 12.5max. 7.5±0.3 10.0±0.5 CENTER(MHz) 37.1500 SPAN(MHz) 10.000 3.75±0.3 35.0±0.3 3 5.5±0.75 9.0max. Others [In-band characteristics] CH1 A/R LOG MAG REF -27.816 dB 2 1 4 [Out-of-band characteristics] CH2 A/R LOG MAG REF -27.804 dB 10.000 dB/ n Matching Circuit IN 1 Ls2 3 OUT SAW 50Ω Lp1 Cp1 50Ω CH2 CENTER(MHz) 37.1500 SPAN(MHz) 50.000 sa21_080825_WFA18B0037KB_e