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| Sichuan Institute of Piezoelectric and Acoustooptic Technology SP19001 IF SAW Filters Electrical Characteristic: Characteristic Nominal Center Frequency 3dB Bandwidth Stop Band Attenuation (from peak level) 1) F0 -50MHz ... F0 -0.5MHz 2) F0 -0.5MHz ... F0 -0.33MHz 3) F0 +0.33MHz ... F0 +0.35MHz 4) F0 +0.35MHz ... F0 +0.5MHz 5) F0 +0.5MHz ... F0 +50MHz Insertion Loss(at F0 point) Group Delay Deviation(with F0 70kHz) Input/Output Impedance (Nominal) Input/Output Impedance(fig1): Sym F0 F3dB Unit MHz MHz dB Spec 190 0.3 40min 27min 25min 27min 32min 6max 0.7max See fig1 IL T dB us Lp1= 270nH;Ls2=160nH;Lc=78nH This may be changed according to PCB Frequency Characteristic(fig3): _______________________________________________________ ___________________________________________ P.O.Box 2513 Chongqing China 400060 -23 Tel:86 -62805392,62919651 Fax:62805284 email:qinth@263.net |
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