TFS224A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 224a.doc
VI TELEFILTER
Version 1.9
Filter specification
TFS 224A
03.09.2004
1/5
Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc * ) :
23 °C
0 dBm
for input:
for output::
1200
1200
- 5,32 pF
- 5,25 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 224A is the minimum of the pass band attenuation. This value is defined as the insertion
loss ae. The nominal frequency fN is fixed at 224,88 MHz without any tolerance. The values of relative attenuation arel are guaranteed for the whole
operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production tolerance scheme.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
ae
6,5 dB
max.
9 dB
Nominal frequency
Passband
Pass band ripple
fN
-
-
0,5 dB
224,88 MHz
fN ± 0,3
MHz
max.
1 dB
Relative attenuation
fN
fN ±
fN ±
fN ±
fN ±
… fN ±
0,75 MHz … fN ±
2,4 MHz … fN ±
8
MHz … fN ±
15
MHz … fN ±
Group delay
arel
0,3 MHz
2,4 MHz
8
MHz
15
MHz
50
MHz
mean value in PB
-
-
40
dB
47
dB
52
dB
765
ns
max.
min.
1 dB
3 dB
min.
33 dB
min.
40 dB
min.
45 dB
765 ± 10
ns
Group delay ripple within PB
50
ns
-
Deviation from linear phase
fN ±
VSWR within PB
0,675 MHz
1,7 ° rms
1,5 : 1
max.
max.
3,5 ° rms
2 :1
Operating temperature range
OTR
-
- 30 °C ... + 80 °C
Storage temperature range
-
- 40 °C ... + 85 °C
Frequency inversion temperature
25
°C
-
Temperature coefficient of frequency
TCf **
-0,03 ppm/K²
-
*) The terminating impedances depend on parasites and q-values of matching elements and the board used, and are to be understood as reference
values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.
**) f(Hz) = TCf(ppm/K²) x ( T)² x fTo(MHz)
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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