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TFS108 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
Filename: tfs 108.doc
Vectron International
Version 1.1
Filter specification
TFS 108
30.01.2014
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
25
°C
0
dBm
836 Ω || - 16.1pF
827 Ω || - 16.1pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS108 is the minimum of the pass band attenuation. This value is defined
as the insertion loss ae. The nominal frequency fN is fixed at 108.5 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
(reference level)
Insertion loss within 2.5dB BW
ae
ae + 2.5dB
7.5
dB
10
max.
max.
9.5 dB
12 dB
Nominal frequency
fN
-
108.5 MHz
Passband
PB
Pass band ripple within PB
fN ± 0.5 MHz
0.3
max.
2.5 dB
Relative attenuation
fN -
0.5 MHz … fN +
fN -
0.8 MHz … fN -
fN -
1.2 MHz … fN -
fN -
5.5 MHz … fN -
fN +
1.5 MHz … fN +
fN +
2.5 MHz … fN +
fN +
9.5 MHz … fN +
fN + 35.5 MHz … fN +
fN + 45.5 MHz … fN +
fN + 143.5 MHz … fN +
fN + 153.5 MHz … fN +
0.5
1.2
5.5
22.5
2.5
9.5
35.5
45.5
143.5
153.5
160
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
2.0
max.
2.5 dB
21
min.
13 dB
40
min.
34 dB
50
min.
40 dB
41
min.
20 dB
42
min.
30 dB
52
min.
40 dB
60
min.
45 dB
47
min.
40 dB
80
min.
45 dB
80
min.
40 dB
Group delay ripple within PB
GDR
200
max. 1000 ns
IIP3
Return loss within PB
Input power
-
min.
30 dBm
12
min.
10 dB
-
max
10 dBm
Operating temperature range
OTR
- 40 °C ... + 85°C
Operable temperature range
- 55 °C ... + 85°C
Storage temperature range
- 55 °C ... + 85°C
Temperature coefficient of frequency
TCf **
-0.036 ppm/K2
*) 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) .
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.