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TFS434K Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification
Filename: TFS434K.doc
Vectron International
Version 1.1
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
257 Ω || - 6.7 pF
313 Ω || - 5.5 pF
TFS 434K
06.08.2013
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS434K is the minimum of the pass band attenuation. This value is defined as the insertion loss
ae. The nominal frequency fN is fixed at 434.0MHz 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
ae
(reference level)
Nominal frequency
fN
Passband
PB
Pass band ripple fN ...fN ± 5.0 MHz
p-p
Relative attenuation
fN
… fN ±
fN ± 20.0 MHz … fN ±
fN -
40
MHz … fN -
fN + 40
MHz … fN +
5.0
40
433
536
arel
MHz
MHz
MHz ****
MHz
Group delay ripple within PB
p-p
Return loss within PB
Input Power
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
OTR
TCf **
typ. value
10.8 dB
-
0.27 dB
0.27
53
47
58
14
23
-
-
-
-18
dB
dB
dB
dB
ns
dB
ppm/K
tolerance / limit
max.
13.0 dB
434.0 MHz
fN ±
max.
5.0 MHz
0.6 dB
max.
min.
min.
min.
0.6 dB
40 dB
45 dB
45 dB
max.
30 ns
min.
10 dB
max.
7 *** dBm
- 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/K) x (T-T0) x fcat(MHz).
***) Aim to update to the required +15dBm in December 2013, once we have our new metallisation.
****) Alternative matching (option 2 in our application note) gives better rejection in 1MHz...100MHz frequency range compared to our default matching stated
herein.
Generated:
Checked / Approved:
Vectron International GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail: tft@vectron.com
Vectron International GmbH reserves the right to make changes to the product(s) and/or information contained herein without notice.
No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or
information.