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TFS131 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
Filename: tfs 131.doc
Vectron International
Version 3.4
Filter specification
TFS 131
20.11.2013
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
236 Ω || -10.5 pF
236 Ω || -10.5 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS131 is the minimum of the pass band attenuation. This value is defined as the insertion loss ae.
The nominal frequency fN is fixed at 131.5 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
ae
(reference level)
With test circuit option 2 only ****
Nominal frequency
fN
15.5 dB
14.2
max.
max.
17 dB
15 dB
131.5 MHz
Passband
Pass band ripple
PB
31.1 MHz
fN ± 13.5 MHz
1.1
dB
max.
2.0 dB
Bandwidth
3 dB
31.1 NHz
min.
27 MHz
Relative attenuation
fN -
fN -
fN ±
fN ±
fN +
13.5
50
35
25
35
MHz … fN +
MHz … fN -
MHz … fN ±
MHz … fN ±
MHz … fN +
13.5
35
25
20
50
With test circuit option 2 only ****
fN -
13
MHz … fN + 13
fN -
35
MHz … fN - 25
fN + 25
MHz … fN + 30
fN + 30
MHz … fN + 35
Group delay ripple in fN ± 4 MHz *)
Group delay ripple in fN ± 13.5 MHz *)
Group delay variation (unit to unit) **)
arel
MHz
MHz
MHz
MHz
MHz
arel
MHz
MHz
MHz
MHz
GDR
1.8
dB
43
dB
34
dB
10.5 dB
45
dB
0.9
dB
41
dB
31
dB
38
dB
2
ns
4
ns
1
ns
max.
min.
min.
min.
min.
3 dB
40 dB
30 dB
8 dB
40 dB
max.
min.
min.
min.
max.
max.
max.
1.5 dB
30 dB
25 dB
30 dB
±8 Ns
±10 ns
±5 ns
Return loss within PB
7
dB
min.
6 dB
With test circuit option 2 only ****
13
dB
min.
10 dB
Input power level
max.
10 dBm
Operating temperature range
OTR
- 40 °C ... + 85°C
Storage temperature range
- 45 °C ... + 85°C
Temperature coefficient of frequency
TCf ****)
-81
ppm/K
*) time gating window 0 … 0.5µs
**) Measured at centre frequency, and averaged value to account for unit to unit variation and different bandwidth variants
***) ∆fc(Hz) = Tcf(ppm/K) x (T - To) x fCAT (MHz).
****) Parameters specified with test circuit option 2 only. Please note that the TFS131 will be tested in production using the test circuit option 1.
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.