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| 12 february 2010 specification for crystal filter: q f 4 5 . 0 - 2 0 0 0 0 / 0 7 1. general 1.1. package : 1.2. type name: qf 45.0 - 20000/07 1.3. number of poles: 6 1.4. operating temperature range: - 20c to +70c 1.5. storage temperature range: - 35c to +85c 2. electric values 2.1. nominal centre frequency fo: 45.0 mhz 2.2. pass band 2.2.1. bandwidth between 3 db - frequencies: ? fo ? 100 khz 2.2.2. ripple: ? 2.0 db at fo ? 75 khz 2.2.3. differential group delay : ? 5.0 s at fo ? 75 khz 2.2.4 . insertion loss: ? 4 . 0 db ( measured on smallest attenuation in pass band ) 2.3. stop band 2.3.1. fo ? 19 0 khz ? 20 db 2.3.2. fo - 9 0 0 khz ? 7 0 db 2.3.3. fo ? 1.7 mhz ? 8 0 db 2.3.4. spurious responses at fo +190 khz+2.5 mhz: ? 30 db 2.4. terminating impedance ( input and output ): 50 ? // 0 pf 2.5. input power level ( workin g/without destruction ) : +1dbm / +15 dbm 3 . marking : manufacturer , date code qf 45.0 - 20000/07 4. environment conditions : corresponding to vectron standard cf001 ____________________________________________________________________ _________________ edited by: date: _________ _ _____ ____ _____ ___ ___ n ame: __ ____ __ ________________________
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