SAW Device SAW Filter for RFID For RFID (3-MHz Band) n Features l A filter with excellent temperature stability. l Compact and light. Pb Free n Specifications Model WF999A0953CG Item min. typ. Nominal frequency : f0 (MHz) – 953.5 – Minimal insertion loss (dB) – 4.2 5.0 3-dB bandwidth (MHz) max. ±1 ±1.4 – f0–50MHz to f0–8MHz 25 35 – Guaranteed attenuation (dB) f0–8MHz to f0–3.5MHz 10 20 – (from the minimal insertion loss) f0+3.5MHz to f0+25MHz 10 15 – fo+25MHz to f0+50Hz 30 38 – – 60 Operating temperature range (°C) –30 Terminating impedance (Ω) 820//–1.3pF n Dimensions n Characteristics 3.8±0.2 5 8 4 2 3.8±0.2 PAD NO. GND 1 INPUT 5 OUTPUT 4.2 1.9 CH1 4 8 CENTER(MHz) 953.5000 SPAN(MHz) 10.000 0.8 4.2 1.4 0.9±0.2 1.4 1.4 1.8±0.2 3 2 1 Others 2.000 dB/ Reference land pattern 0.9±0.2 1.9±0.2 CONNECTION CH1 A/R LOG MAG REF –4.150 dB 3 1.1±0.2 1 [In-band characteristics] mm 6 7 (0.1) 7 [Out-of-band characteristics] 5 6 8–0.6±0.2 0.8 1.27±0.2 0.8 1.25 CH1 A/R LOG MAG REF –4.150 dB 0.8 10.000 dB/ 1.25 n Matching Circuit IN 11nH 1 5 11nH OUT SAW 50Ω 0.5pF 6.5pF 2 3 4 6 7 8 0.5pF 6.5pF 50Ω CH1 CENTER(MHz) 953.5000 SPAN(MHz) 100.000 sa11_071102_WF999A0953CG_e1