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| 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)(f00.2MHz) Absolute group delay time (ns)(at f0) Group delay deviation (ns p-p)(f00.2MHz) Out-of-band attenuation (from the minimal insertion loss) f00.4MHz to f00.6MHz f00.6MHz to f01.2MHz f01.2MHz to f01.8MHz f01.8MHz to f03.4MHz Guaranteed attenuation (dB) *1 *1 Terminating impedance () f03.4MHz to f06.5MHz f06.5MHz to f09.5MHz f09.5MHz to f017MHz 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 1.905x4=7.62 7 0.80 89 10 2.5 7.5 1.905x4=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 sec 0.050 sec/ 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 50 Lp1 Others Lp4 50 5 Ls3 CH1 CENTER(MHz) 125.0000 SPAN(MHz) 12.000 sa18_071102_WF972A0125CG_e1 |
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