TFS230 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

tfs230.doc
VI TELEFILTER
Filter specification
Measurement Condition
Ambient Temperature:
Input Power Level:
Source impedance:
Load impedance:
Terminating impedances:
input:
output:
23 °C
0 dBm
50 Ω
50 Ω
2,0 kΩ || -4,7 pF
1,4 kΩ || -4.9 pF
version 2.0 08.03.2000
TFS 230
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel is the minimum pass band attenuation amin. It is defined as the insertion loss ae. The nominal
frequency fN is fixed to 230,0 MHz. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 1,2 dB filter
attenuation level relative to the insertion loss ae. The given values for the insertion loss, the relative attenuation arel and the group delay ripple have
to be reached at the frequencies given below also if the centre frequency fc is shifted due to the temperature coefficient of frequency TCf in the
operating temperature range and due to a production tolerance for the centre frequency fc.
Data
typ. Value
Limit
Insertion Loss
(Reference level)
a_e = a_min
13,0 dB
max. 14,5 dB
Nominal Frequency
fN
-
230,0 MHz
1.2 dB - Bandwidth
BW
4,2 dB
min. 3,9 MHz
Pass Band Ripple
fN ± 1,950 MHz
0,7 dB
max. 1,2 dB
Relative Attenuation
arel
fN ± 3,0 MHz ... fN ± 5,0 MHz
30 dB
min. 18 dB
fN ± 5,0 MHz ... fN ± 10,0 MHz
47 dB
min. 45 dB
fN ± 10,0 MHz ... fN ± 100,0 MHz
57 dB
min. 50 dB
______________________________________________________________________________________________________
Group delay ripple
ϕ
fN ± 1,950 MHz
100 ns
max. 150 ns
VSWR
fN ± 1,950 MHz
1,8:1
max. 2:1
Operating Temperature Range
- 30 °C ... + 80 °C
Generated:
Checked / approved:
VI TELEFILTER
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Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
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E-Mail: [e-mail]
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