TFS240H Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

TFS 240h.doc
VI TELEFILTER
Filter Specification
version 2.0
TFS 240 H
13.06.2003
1/5
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc*:
25 °C
0 dBm
input: 455
output: 520
// -9,1 pF
// -8,3 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 240 H is the insertion loss. The minimum of the pass band attenuation amin is defined
as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 25 dB 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.
Data
Insertion loss
ae
Centre frequency
fc
(reference frequency at ambient temperature)
Passband Ripple (p-p) f_c 100 kHz
Relative attenuation
fc
fc ± 0,1
......... fc
MHz ......... fc
fc ± 0,375 MHz ......... fc
fc ± 0,575 MHz ......... fc
fc ± 0,975 MHz ......... fc
10
MHz ......... fc
fc + 5
MHz ......... fc
arel
± 0,1 MHz
± 0,15 MHz
± 0,575 MHz
± 0,975 MHz
±5
MHz
-5
MHz
+ 360
MHz
Triple transit response suppression
typ. value
7,2 dB
-
0,25 dB
0,25 dB
0,75 dB
30 dB
33 dB
40 dB
45 dB
45 dB
25 dB
tolerance / limit
max.
9 dB
240 MHz ± 25 kHz
max.
0,5 dB
max.
max.
min.
min.
min.
min.
min.
0,5 dB
1 dB
25 dB
30 dB
35 dB
38 dB
38 dB
min. 15 dB
Group delay ripple
Average group delay
in f_c 100 kHz
in f_c 100 kHz
270 ns
2,1 µs
max. 400 ns
max.
2,4 µs
Return loss
Input Power Level
in f_c 150 kHz
10 dB
-
min.
7 dB
max. 20 dBm***)
Operating temperature range
-
- 30 °C.... + 80 °C
Storage temperature range
-
- 40 °C.... + 85 C
Temperature coefficient of frequency
TCf **
-0,04 ppm/K²
-
Frequency inversion temperature
T0
28 °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 fTo(MHz)
***) This power level is allowed for short term operation (10% of life time) only, the max. input power for continuous operation is 15 dBm
generated:
checked / approved:
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
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