
TFS411.doc
VI TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances:
Characteristics
Remark:
The maximum of the pass band attenuation amax is defined as the insertion loss ae. The nominal frequency f
is fixed at 411,0 MHz without
tolerance. The given values for the absoult attenuation ae have to be reached at the frequencies given below even if the centre frequency fc is
shifted due to the temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre
frequency fc.
D a t a
Insertion loss
(within PB)
ae = amin
Nominal frequency
fN
version 1.0
17.07.03
Filter specification
TFS 411 1/5
Tele Filter GmbH
Potsdamer Strae 18
D-14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / 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.
23
°
C
0 dBm
input: 50
output: 50
typ. value
Variation/ Limitation
2,36
dB
max.
4,8
dB
-
411
MHz
Passband
PB
8,90
MHz
fN ± 2,5
MHz
Absolute attenuation
in OTR
fN - 464,7 MHz ....... fN -
fN -
12,5 MHz ....... fN -
fN +
20
MHz ....... fN + 735
fN + 735
MHz ....... fN + 1235
fN + 1235
MHz ....... fN + 1535
12,5 MHz
7,5 MHz
55
50
62
40
35
dB
dB
dB
dB
dB
min.
min.
min.
min.
min.
43
33
40
30
15
dB
dB
dB
dB
dB
MHz
MHz
MHz
Temperature coefficient of frequency
TC
f
*
- 32
ppm/K
-
Operating temperature range OTR
-10 °C ... + 85 °C
Storage temperature range
-30 °C ... + 85 °C
*)
fc(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
C
(MHz)
generated
:
checked / approved :