SAW Device WF994A0056RC For High Precision Industry ■ Features ● IF SAW filter for digital terrestrial broadcasting mini-satellite. ● Compact. ● With a low-band ripple. ● Excellent steepness characteristics. ■ Specifications Model WF994A0056RC Item min. typ. Nominal frequency : f0 (MHz) 56.857 Minimum loss : IL (dB) 1 dB bandwidth : (Minimum loss) : − 28.5 30 Lower (MHz) − -2.84 -2.81 Upper (MHz) +2.81 +2.86 − − 0.79 1.0 f0–12.857 to f0–3.2 MHz (dB) 30 33 − f0+3.2 to f0+13.143 MHz (dB) 30 33 − In-band deviation (Max. f0±2.81 MHz)(dB) Guaranteed attenuation (Minimum loss standard) max. Operating temperature range (°C) +23 to +27 Terminating impedance (Ω) 50 ■ Dimensions ■ Characteristics 13.5 max 10.74±0.3 mm Pin connections Others 2 10 CH1 A/R LOG MAG REF -29.031 dB GND INPUT OUTPUT [In-band characteristics] 1.000 dB/ 5±0.5 6.4 max 22.74±0.3 25.5 max 16-φ0.45±0.1 16 15 14 13 CH1 7.62±0.3 13.5 max 1 2 3 4 5 6 7 8 CENTER(MHz) 56.8570 SPAN(MHz) 10.000 [Out-of-band characteristics] 12 11 10 9 CH1 A/R LOG MAG REF -29.026 dB 2.54±0.3 17.78 25.5 max 10.000 dB/ ■ Matching Circuit IN 50Ω 2 10 OUT SAW 50Ω CH1 -3- CENTER(MHz) 56.8570 SPAN(MHz) 50.000 111006_WF994A0056RC_e