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TFS340B Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification
Filename: tfs 340b.doc
Vectron International
Version 3.0
Filter specification
Measurement condition
Ambient temperature:
Input power level*:
Input:
Output:
Source:
Load:
23
°C
0
dBm
50Ω
50Ω
162Ω || -0.5pF
162Ω || -0.5pF
TFS 340B
17.06.2015
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS340B is the minimum of the passband attenuation amin. The minimum of the passband
attenuation amin is defined as the insertion loss ae. The nominal frequency fN is fixed at 340MHz without any tolerance. The values of the relative
attenuation arel are guaranteed over the whole operating temperature range. The frequency shift of the filter within the operating temperature range is
included in the production tolerance scheme.
Data
typ. value
tolerance / limit
Insertion loss @ 23°C
Insertion loss in OTR
Nominal frequency
Pass band
Passband variation @ 23°C
ae=amin
ae=amin
fN
PB
2.6
dB
3.1
dB
2.4
dB
max.
max.
fN
max.
3.5
4.0
340.0
± 10.0
3
dB
dB
MHz
MHz
dB
Relative attenuation
arel
fN -
80.0 MHz ... fN -
100.0 MHz
fN -
35.0 MHz ... fN -
55.0 MHz
fN +
25.0 MHz ... fN +
57.5 MHz
fN +
57.5 MHz ... fN +
82.5 MHz
fN +
127.5 MHz ... fN +
152.5 MHz
59
dB
62
dB
23
dB
64
dB
67
dB
min.
50
dB
min.
30
dB
min.
20
dB
min.
40
dB
min.
57
dB
Input power level
max.
0
dBm
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
OTR
TCf **
-72
ppm/K
-25 °C ... + 75 °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.
**) ∆fC(Hz) = TCf(ppm/K) x (T - TA) x fCTA (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.