TFS403 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Tfs403.doc
VI TELEFILTER
Filter Specification
version 1.4
TFS 403
25.11.2002
1/5
Measurement condition
Ambient temperature:
23 C
Input power level:
0 dBm
Terminating impedances at fc *:input: 81
output: 86
II –11,5 pF
II –12,6 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 403 is the minimum of the pass band attenuation amin. The minimum of the pass band
attenuation amin is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at
the 3 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 403,5 MHz without tolerance. The given
values for the relative attenuation arel and for the group delay ripple 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
typ. Value
Limit
Insertion loss
ae
(Reference level)
Nominal frequency
fN
Pass band
PB
Amplitude ripple in PB p-p
Relative attenuation
arel
fN
....... fN ± 1,5
fN ± 5,5 MHz ...... fN ± 9
fN ± 9 MHz ....... fN ± 19,5
fN ± 19,5 MHz ....... fN ± 23,5
fN + 400,5 MHz ....... fN + 406,5
2 fN ± 3 MHz
MHz
MHz
MHz
MHz
MHz
Return loss within PB
4,6 dB
-
0,6 dB
-
32 dB
32 dB
45 dB
70 dB
85 dB
14 dB
max. 5,5 dB
403,5 MHz
fN
1,5 MHz
max. 1 dB
max. 1
min. 20
min. 25
min. 35
min. 20
min. 20
dB
dB
dB
dB
dB
dB
-
Input power level
-
max. 10 dBm
Temperature coefficient of frequency Tcf **
Operating temperature range
Storage temperature range
-20 ppm/K
-
-
- 10 °C.. + 60 °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:
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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.