MQF 4 5 . 0

17 February 2004
Specification for monolithic crystal filter:
MQF 45.0-0750/20
1. General
1.1. Package ( each filter consist of a matched pair of two packages GH9S1 ):
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 45.0-0750/20
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:
45.0 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 )
≥ fo ± 3.75 kHz
≤ 1.0 dB at fo ± 3.0 kHz
≤ 5.0 dB
2.3.
Stop band
2.3.1. fo ± 12.5 kHz
2.3.2. fo ± 910 kHz
≥ 30 dB
≥ 90 dB
2.4.
Terminating impedance R//C ( input and output ):
2.4.1. Coupling capacitance ( Cc ):
350 Ω // 6.5 pF
18 pF
3.
manufacturer, date code
45.0-0750/20
Marking on the package:
4.
Environment conditions:
Corresponding to Telefilter CF001
____________________________________________________________________________________
Edited by:
date: ______________________ name: ________________________