10 january 2012 specification for crystal filter: q f 4 5 . 0 - 0 3 0 0 / 0 6 1. general 1.1. package : 1.2. type name: qf 45.0 - 0300/06 1.3. number of p oles: 5 1.4. operating temperature range: - 20c to +8 0c 1.5. storage temperature range: - 4 5c to +85c 2. electric values 2.1. nominal centre frequency fo: 45.0 mhz 2.2. pass band 2.2.1. centre frequency fc at +25c: 45.0 mhz ? 400 hz 2.2.2 . bandwidth between 3 db - frequencies: > fc ? 1 .5 khz 2.2.3 . ripple: < 2.0 db peak to peak 2.2.4 . insertion loss: ? 9 . 0 db ( measured on smallest attenuation in pass band ) 2.3. stop band 2.3.1. fc + 1 0 khz , fc - 11 khz > 6 0 db 2.3.2. fc + 15 khz, fc - 16 khz > 8 0 db 2.3.3 . spurious responses at fc +1 5 khz ..+ 5 00 k hz: ? 6 0 db 2.4. terminating impedance ( input and output ): 50 ? // 0 pf 2.5. input power level ( working / non - damaged ) : < 0 dbm / +1 5 dbm 3 . marking : manufacturer , date code qf 45.0 - 0300/06 4. environment conditions : corresponding to vectron standard cf001 _____________________________________________________________________________________ edite d by: date: _ ____ ________ _____ _____ ___ ___ n ame: __ __ ___ __ ________________________
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