TFS245E Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 245e.doc
VI TELEFILTER
Version 1.3
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
640 || -2 pF
640 || -2 pF
TFS 245E
29.02.2008
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 245E is the minimum of the pass band attenuation. This value is defined as the insertion loss
ae. The nominal frequency fN is fixed at 245,977 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
Insertion loss
(reference level)
Nominal frequency
Passband
Pass band ripple
Bandwidth
2 dB
Relative attenuation
f_N
f_N -
f_N -
f_N -
f_N +
f_N +
f_N +
25,0
1,6
0,6
0,4
0,6
1,6
… f_N ±
MHz … f_N -
MHz … f_N -
MHz … fN -
MHz … f_N +
MHz … f_N +
MHz … f_N +
Group delay ripple within PB
50,0
1,6
0,6
0,4
0,6
1,6
25,0
Input power level
Permissible DV voltage
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
ae
fN
PB
BW
arel
kHz
MHz
MHz
MHz
MHz
MHz
MHz
OTR
TCf **
typ. value
4,7 dB
-
-
0,5 dB
200
kHz
0,5 dB
60
dB
60
dB
45
dB
50
dB
50
dB
55
dB
1,5 µs
-
-
-
-
27
-0,038
°C
ppm/K²
tolerance / limit
max.
6,5 dB
245,978 MHz
f_N ± 50,0 kHz
max.
2,0 dB
min.
100,0 kHz
max.
min.
min.
min.
min.
min.
min.
2 dB
50 dB
32 dB
20 dB
20 dB
32 dB
50 dB
max.
3 µs
max.
10 dBm
max.
5V
- 40 °C ... + 85 °C
- 40 °C ... + 85 °C
-
-
*) The terminating impedances depend on parasitics 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-T0)² x fcat(MHz).
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail:
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