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TFS421 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
TFS421.doc
VI TELEFILTER
version 1.0
Filter specification
Measurement condition
Ambient temperature:
23
Input power level:
0
Terminating impedances:
C
dBm
input: 50
output: 50
17.07.03
TFS 421 1/5
Characteristics
Remark:
The maximum of the pass band attenuation amax is defined as the insertion loss ae. The nominal frequency fN is fixed at 421,0 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.
Data
Insertion loss (within PB)
ae = amin
Nominal frequency
fN
Passband
PB
Absolute attenuation in OTR
fN - 464,7
fN - 12,5
fN + 20
fN + 735
fN + 1235
MHz ....... fN - 12,5
MHz ....... fN - 7,5
MHz ....... fN + 735
MHz ....... fN + 1235
MHz ....... fN + 1535
MHz
MHz
MHz
MHz
MHz
Temperature coefficient of frequency TCf*
Operating temperature range OTR
Storage temperature range
*) fc(Hz) = Tcf(ppm/K) x (T - TA) x fC (MHz)
typ. value
2,36 dB
-
9,11 MHz
55
dB
47
dB
62
dB
40
dB
35
dB
- 32
ppm/K
Variation/ Limitation
max. 4,8 dB
421
fN ± 2,5
MHz
MHz
min. 43
dB
min. 33
dB
min. 40
dB
min. 30
dB
min. 15
dB
-
-10 °C ... + 85 °C
-30 °C ... + 85 °C
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@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.