SAW Device SAW Filter for CATV For Industrial Use n Features l A low-loss filter. l With a low-band ripple. l Excellent group delay characteristics. l Excellent guaranteed attenuation. Pb Free n Specifications Model WF957A0056KB Item min. typ. Nominal center frequency : f0 (MHz) – 56.857142 max. – Insertion loss (dB) (at f0) – 27.4 35 In-band deviation (dB p-p) (f0±2.79MHz) – 0.7 1.2 Group delay deviation (ns p-p) (f0±2.79MHz) – 60.0 140 Out-of-band attenuation (dB) f0–6MHz to f0–3.21MHz 30 37 – from the minimal insertion loss f0+3.21MHz to f0+6MHz 30 38 – 0 – 60 Operating temperature range (°C) Terminating impedance (Ω) 50 n Dimensions n Characteristics mm PAD NO. CONNECTION GND 2 INPUT 7 OUTPUT characteristics] 6.5 7.6 max Others [In-band CH1 A/R LOG MAG REF –27.360 dB 0.500 dB/ CH2 A/R DELAY REF 4.983 μsec 0.100 μsec/ 9–φ0.6 CH1 CENTER(MHz) 56.8571 CH2 CENTER(MHz) 56.8571 SPAN(MHz)10.000 SPAN(MHz)10.000 51.5max 5.08 12.7 12.7 5.08 [Out-of-band characteristics] 3 9 8 4 5 20.32 1 2 7 6 31.5max CH1 A/R LOG MAG REF –27.360dB 10.000 dB/ CH1 CENTER(MHz) 56.8571 SPAN(MHz) 12.000 sa20_071102_WF957A0056KB_e1