
______________________________________________________________________________________________________
______________________________________________________________________________________________________
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances:
Input:
Output
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 155 is the maximmum pass band attenuation, which is is defined as
the insertion loss ae. The nominal frequency fN is fixed at 155,52 MHz without tolerance or limit. The values of relative
attenuation arel are guaranteed in the whole operating temperature range. The frequency shift of the filter in the operating
temperature range is included in the production tolerance scheme.
D a t a
______________________________________________________________________________________________________
Insertion loss
ae
(Reference level)
______________________________________________________________________________________________________
Nominal frequency
______________________________________________________________________________________________________
Usable signal band width
______________________________________________________________________________________________________
Relative attenuation
arel
fN + 910 kHz
±
3 MHz
fN
±
10 MHz
fN
Temperature coefficient of frequency
______________________________________________________________________________________________________
Frequency inversion temperature
______________________________________________________________________________________________________
Operating temperature range
______________________________________________________________________________________________________
*)
f(Hz) = TCf(ppm/K2) x (
T)2 x fTo(MHz)
generated:
checked / approved:
______________________________________________________________________________________________________
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.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.
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
23
°
C
0 dBm
:
:
670
// -1 pF
670
// -1 pF
typ. value
tolerance / limit
2,5
max.
5
dB
155,525 MHz
155,52
MHz
min.
10
kHz
70 dB
65 dB
min.
min.
65
50
dB
dB
- 0,036 ppm/K2
-
+ 25
°C
-
- 10 °C ... + 50 °C