TFS45A Datasheet, PDF (1/2 Pages) Vectron International, Inc – Filter Specification

tfs45A.doc
version 1.2
06.01.02
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VI TELE FILTER
Filter Specification
TFS 45 A - 1/2
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Measurement condition
Ambient temperature:
Input power level:
Terminating impedances:
23°C
10 dBm
50 Ω and matching network
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 45 A is the minimum of the pass band attenuation amin. The minimum of the pass and
attenuation amin is defined as the insertion loss ae. The centre frequency fo is the arithmetic mean value of the upper and lower frequencies at the
3dB filter attenuation level relative to the insertion loss ae. The temperature coefficient of frequency Tcf is valid both for the reference frequency fc
and the frequency response of the filter in the operating temperature range. The frequency shift of the filter in the operating temperature range is
not included in the production tolerance scheme.
Data
typ. value
Variation/ Limitation
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Insertion loss
(Reference level)
ae
5.5 dB
max. 6.5 dB
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Reference frequency
fC
45,50 MHz
max. ±20 kHz
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3 dB - bandwidth
BW1
375 kHz
min. 340 kHz
20 dB - bandwidth
BW2
750 kHz
max. 950 kHz
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Pass Band Ripple
fC ± 100 kHz
0.8 dB
max. 1.5 dB
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Relative attenuation
arel
fC ± 170 kHz
2.5 dB
max. 3 dB
fC ± 475 kHz.... fC ± 1.0 MHz
30 dB
max. 20 dB
fC ± 1.0 MHz... fC ± 3.0 MHz
40 dB
max. 30 dB
fC ± 3.0 MHz... fC ± 10 MHz
45 dB
max. 35 dB
fC ± 10 MHz... fC ± 25 MHz
55 dB
max. 44 dB
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Group Delay
GD
2.4 µs
-
Group Delay Ripple
fC ± 100 kHz
200 ns
max. 300 ns
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temperature coefficient
TC 1 st order
0 ppm/K
-
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Generated:
Checked / Approved:
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VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: [phone] / Fax: [phone]
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E-Mail: [e-mail]
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VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
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