TFS453 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

TFS453.doc
VI TELEFILTER
version 1.3
Filter specification
Measurement condition
Ambient temperature:
25 C
Input power level:
0 dBm
Terminating impedances at fc *: input: 340
output: 340
// -5,0 pF
// -5,3 pF
28.11.03
TFS 453 1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 453 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 3 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
typ. value
tolerance / limit
Insertion loss at fN
(reference level)
Nominal frequency
fN
Centre frequency
fC
( at ambient temperature)
5,3 dB
-
453 MHz
max. 7 dB
453 MHz
± 0,2 MHz
Passband
PB
Amplitude variation within PB
-
0,3 dB
fc ±
max.
1,6 MHz
1 dB
Relative attenuation
fC
... fC ±
fC ±
1,6 MHz ... fC ±
fC ±
4,3 MHz ... fC ±
fC ±
8 MHz ... fC ±
1,6
2,5
8
50
Group delay ripple within PB
Absolute group delay at fC
Phase variation within PB
MHz
MHz
MHz
MHz
0,3 dB
1,6 dB
17 dB
37 dB
40 ns
0,38 µs
4,8 deg
max. 1 dB
max. 3 dB
min. 10 dB
min. 20 dB
max. 100 ns
max. 1 µs
max. 6 deg (p-p)
Triple transit suppression
VSWR
within PB
38 dB
16 dB
min. 35 dB
min. 10 dB
Input power level
-
max. + 15 dBm
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature T:
Operating temperature range
- 18 ppm/K
-
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
-
- 40 °C... + 85 °C
Storage temperature range
-
- 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.
generated
:
checked / approved
:
TELEFILTER GmbH
Potsdamer Straße 18
D-14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.