SAW Device SAW Filter for RKE For Industrial Use n Features l This is a low-loss filter. l Excellent out-of-band characteristics Pb Free n Specifications Model WF866B0315CH Item min. typ. Nominal frequency : f0 (MHz) – 315 – Minimal insertion loss (IL)(dB) – 3.5 5.0 3-dB passband width (kHz) Amplitude deviation (dB) Guaranteed attenuation (dB) max. – 600 – 314.84 to 315.16MHz – 1.3 2.5 10 to 288MHz 53 58 – 288 to 307MHz 40 50 – 307 to 311MHz 27 35 – 311 to 314MHz 10 15 – 316 to 321MHz 8 15 – 321 to 326MHz 20 30 – 326 to 338MHz 40 50 – 338 to 600MHz 48 54 – 600 to 1000MHz 50 55 – –40 – +105 Operating temperature range (°C) Terminating impedance (Ω) 510//–3.7pF n Dimensions n Characteristics CH1 A/R LOG MAG REF –2.840 dB mm 10.000 dB/ 3.8±0.2 6 5 8 PAD NO. 4 GND 1 INPUT 5 OUTPUT 3 2 1.3max 1 CONNECTION Others 3.8±0.2 7 Reference land pattern 4.2 3 2 1.4 CH1 0.1 8–0.6 7 6 0.8 CENTER(MHz) 315.0000 SPAN(MHz) 50.000 n Matching Circuit 4.2 4 8 1.4 1.8 1.4 1 1.9 6–0.9 1.9 62nH 1 5 62nH IN 5 0.8 0.8 SAW 0.8 1.27 1.25 OUT 1.25 50Ω 11pF 11pF 50Ω 2 3 4 6 7 8 sa09_071102_WF866B0315CH_e1