MQF 2 1 . 4

26 October 1993
Specification for monolithic crystal filter:
MQF 21.4-1500/14
1. General
1.1. Package:
1.2.
1.3.
Type name:
Number of poles:
MQF 21.4-1500/14
8
1.4.
1.5.
1.6.
Operable temperature range:
Operating temperature range:
Storage temperature range:
-30°C to 80°C
-25°C to 70°C
-55°C to 80°C
2.
Electric values
2.1.
Nominal centre frequency fo:
2.2.
Pass band
21.4 MHz
2.2.1. Bandwidth between 3 dB - frequencies:
2.2.2. Ripple:
≥ fo ± 7.5 kHz
≤ 2.0 dB at fo ± 6.0 kHz
2.2.3. Insertion loss:
( measured on smallest attenuation in pass band )
≤ 4.0 dB
2.3.
Stop band
2.3.1. fo ± 17.5 kHz
2.3.2. fo ± 25 kHz.........± 300 kHz
≥ 65 dB
≥ 90 dB
2.4.
Terminating impedance ( input and output ):
470 Ω // 15 pF
3.
Marking on the case:
firm, year week
MQF 21.4-1500/14
4.
Environment conditions:
Corresponding to Telefilter CF001
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Edited by:
date: ______________________ name: __________________________