Specification for crystal filter 1. General 1.1. Case:
QF 70. 0-20000/05
16 August 2006
1.2. 1.3. 1.4. 1.5. 2. 2.1.
Type name: Number of poles: Operating temperature range ( OTR ): Storage temperature range: Electric values Nominal centre frequency fo:
QF 70.0-20000/05 4, fundamental mode -20C to +80C -45C to +85C
70.0 MHz > fo 95 kHz Gaussian < 1.0 s at fo 75 kHz < 8 dB
2.2. Pass band 2.2.1. Bandwidth between 6 dB - frequencies: 2.2.2. Ripple: 2.2.3. Group delay in OTR: 2.2.4. Insertion loss: ( measured on smallest attenuation in pass band ) 2.3. 2.3.1. 2.3.2. 2.3.3. 2.3.4. 2.4. 2.5. 3. Stop band fo 500 kHz fo 800 kHz fo 2000 kHz Spurious responses: Terminating impedance ( input and output ): Maximum input power level without damage Marking on the case:
> 40 dB > 60 dB > 75 dB permitted at frequencies > fo + 800 kHz 50 // 0 pF -5 dBm ( +10 dBm without destruction ) manufacturer, date code QF 70.0-20000/05
4. Environment conditions: Corresponding to Telefilter CF001 _____________________________________________________________________________________ Edited by: date: ________________________ name: ________________________
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