English
Language : 

TFS174H Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification
Filename: tfs 174h.doc
Vectron International
Version 2.1
Filter specification
TFS 174H
15.06.2009
1/5
Measurement condition
Ambient temperature:
Input power level:
Source impedance:
Load impedance:
23
0
50 Ω
200 Ω
°C
dBm
Terminating impedance: *
Input:
Output:
478 Ω || -7,8 pF
236 Ω || -13 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 174H is the minimum of the pass band attenuation. This value is defined as the insertion
loss ae. The nominal frequency fN is fixed at 174 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
Insertion loss
(reference level)
Nominal frequency
Passband
Pass band ripple
Bandwidth
1 dB
2 dB
5 dB
ae
fN
PB
p-p
BW
Relative attenuation
f
N
f ± 21
N
f ± 24
N
f ± 27
N
… f ± 15
N
MHz … f ± 24
N
MHz … f ± 27
N
MHz … f ± 40
N
Average group delay within PB
arel
MHz
MHz
MHz
MHz
Group delay ripple within PB
p-p
Phase linearity within PB
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
OTR
TCf ***
typ. value
10,5 dB
35,2 MHz
0,4 dB
35,2 MHz
36,5 MHz
38,5 MHz
0,5
8
34
43
400
25
2,5
-
-
-
-91
dB
dB
dB
dB
ns
ns
°
ppm/K
tolerance / limit
max.
12,0 dB
fN ±
max.
174,0
15,0
1,0
MHz
MHz
dB
min.
min.
max.
30,0 MHz
32,0 MHz
42,0 MHz
max.
min.
min.
min.
1 dB
5 dB
30 dB
40 dB
max. 470 ns
max. 100 ns
max.
4 °p-p
max.
20 ** dBm
- 54 °C ... + 85 °C
- 54 °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.
**) This power level is only allowed for short term operation (cycle time 1:1000), the max. input power for continuous operation is max.10dBm only
***) ∆f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz), fTo: frequency at room temperature
Generated:
Checked / Approved:
Vectron International GmbH & Co. KG
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 & Co. KG 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.