MQF 2 1 . 4

18 March 1993
Specification for monolithic crystal filter:
MQF 21.4-1200/02
1. General
1.1. Package: 2 x GH9 ( each filter consists of a pair of two matched packages GH9 )
1.2.
1.3.
1.4.
1.5.
1.6.
Type name:
Number of poles:
Operable temperature range:
Operating temperature range:
Storage temperature range:
MQF 21.4-1200/02
4
-30°C to 80°C
-25°C to 70°C
-55°C to 80°C
2.
2.1.
Electric values
Nominal centre frequency fo:
21.4 MHz
2.2.
2.2.1.
2.2.2.
2.2.3.
Pass band
Bandwidth between 3 dB - frequencies:
Ripple:
Insertion loss:
( measured on smallest attenuation in pass band )
2.3.
2.3.1.
2.3.2.
2.3.3.
2.3.4.
Stop band
fo ± 20 kHz
fo + 50 kHz..........+1000 kHz
fo - 100 kHz.........-1000 kHz
Spurious responses:
≥ fo ± 6.0 kHz
≤ 1.0 dB at fo ± 4.5 kHz
≤ 2.0 dB
≥ 40 dB
≥ 65 dB
≥ 80 dB
≥ 40 dB
2.4.
Terminating impedance R//C ( input and output ):
2.4.1. Coupling capacitance Cc:
1200 Ω // 2.5 pF
9.0 pF
3.
manufacturer, date code
21.4-1200/02
Marking on the package:
4.
Environment conditions:
Corresponding to Telefilter CF001
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Edited by:
date: ___________________
name: _______________________________