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MQF21-4-4000-18 Datasheet, PDF (1/1 Pages) Vectron International, Inc – Nominal centre frequency fo: 21.4 MHz
Specification for monolithic crystal filter:
1. General
1.1. Package:
MQF 21.4-4000/18
20 Januaray 2009
1.2. Type name:
1.3. Number of poles:
1.4. Operating temperature range:
1.5. Storage temperature range:
MQF 21.4-4000/18
4
-40°C to +85°C
-45°C to +85°C
2. Electric values
2.1. Nominal centre frequency fo:
21.4 MHz
2.2. Pass band
2.2.1. Bandwidth between 3 dB - frequencies:
2.2.2. Ripple:
2.2.3. Insertion loss:
( measured on smallest attenuation in pass band )
> fo  20 kHz
< 1.5 dB at fo  15 kHz
< 2.0 dB
2.3. Stop band
2.3.1. fo  67.5 kHz
2.3.2. fo  120 kHz
2.3.3. Alternate Attenuation
2.3.4. Spurious response fo +67.5 kHz…+500 kHz
> 40 dB
> 60 dB
> 80 dB (except spurious)
> 30
2.4.1 Nominal input power level
2.4.2. Maximal input power level
+ 0 dBm
+ 15 dBm
2.5. Terminating impedance R//C ( input and output ) 4000  // -0.3 pF
2.6. Coupling capacitance
0.7 pF
3. Marking:
manufacturer, date code
21.4-
4000/18
4. Environment conditions:
Corresponding to Vectron standard CF001
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Edited by:
date: _______________________________ name: ______________________________