English
Language : 

TFS242A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification
Filename: tfs 242a.doc
VI TELEFILTER
Version 1.1
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
115 Ω || -17.5 pF
54 Ω || -24.5 pF
TFS 242A
09.07.2007
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 242A is the minimum of the pass band attenuation. This value is defined as the insertion
loss ae. The nominal frequency fN is fixed at 242,5 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
Insertion loss
(reference level)
Nominal frequency
Passband
Pass band ripple
Relative attenuation
fN -
17,5 MHz … fN +
fN - 242,2 MHz … fN -
fN + 27,5 MHz … fN +
17,5
27,5
357,5
Absolute group delay
Group delay ripple within PB
IIP3
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
ae
fN
PB
arel
MHz
MHz
MHz
****
OTR
TCf **
typ. value
13,7 dB
-
38,6 MHz
0,5 dB
0,5 dB
48
dB
45
dB
0,35 µs
25
ns
-
-
-
t.b.d.
ppm/K
tolerance / limit
max.
15 dB
242,5
fN ± 17,5
max.
1,0
MHz
MHz
dB
max.
min.
min.
1,0 dB
40 dB
40 dB
max.
0,65 µs
max. 100 ns
min
41 dBm
max.
10 dBm
- 33 °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.
**) ∆f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz)
****) fin1= 222,5 MHz; fin2= 232,5 MHz; Pin=0dBm fmeasurement = 242,5MHz
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail: tft@vectron.com
VI TELEFILTER 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.