WF972A0125CG

SAW Device SAW Filter for GSM Base Station n Features l A low-loss filter. l With a low-band ripple. l Excellent group delay characteristics. l Excellent guaranteed attenuation. For Industrial Use Pb Free n Specifications Model Item Nominal frequency : f0 (MHz) Minimal insertion loss (dB) 1-dB passband width (MHz) In-band deviation (dB p-p)(f0±0.2MHz) Absolute group delay time (ns)(at f0) Group delay deviation (ns p-p)(f0±0.2MHz) Out-of-band attenuation (from the minimal insertion loss) f0±0.4MHz to f0±0.6MHz f0±0.6MHz to f0±1.2MHz f0±1.2MHz to f0±1.8MHz f0±1.8MHz to f0±3.4MHz Guaranteed attenuation (dB) *1 *1 Terminating impedance (Ω) f0±3.4MHz to f0±6.5MHz f0±6.5MHz to f0±9.5MHz f0±9.5MHz to f0±17MHz f0–115MHz to f0–17MHz f0+17MHz to f0+325MHz Operating temperature range (°C) min. – – 0.4 – 700 – – 0 8 20 25 34 40 43 55 55 –10 WF972A0125CG typ. 125 5.6 0.7 0.5 1075 85.0 – 2 11 31 44 47 41 51 65 56 – 50 with matching max. – 7 – 1.0 1700 120 – – – – – – – – – – 85 n Dimensions mm Reference land pattern 13.3 10 9 8 7 6 6.5 6 1.905×4=7.62 7 0.80 89 10 2.5 7.5 1.905×4=7.62 n Characteristics CH1 A/R LOG MAG [In-band REF –5.670 dB 0.500 dB/ CH2 A/R DELAY REF 1.044 μsec 0.050 μsec/ characteristics] 1 2 3 4 5 5 4 3 2 1 1.5 10–1.0 1.65 max PAD NO. Others 10 5 CONNECTION GND INPUT OUTPUT CH1 A/R LOG MAG [Out-of-band REF –5.670dB 10.000 dB/ CH1 CENTER(MHz) 125.0000 CH2 CENTER(MHz) 125.0000 SPAN(MHz)1.000 SPAN(MHz)1.000 characteristics] n Matching Circuit Ls2 10 SAW 50Ω Lp1 Others Lp4 50Ω 5 Ls3 CH1 CENTER(MHz) 125.0000 SPAN(MHz) 12.000 sa18_071102_WF972A0125CG_e1