Filter Specification
Tfs403A.doc
version 1.3
27.11.2002
VI TELEFILTER
Measurement condition
Ambient temperature: 23 C Input power level: 1...
Description
Tfs403A.doc
version 1.3
27.11.2002
VI TELEFILTER
Measurement condition
Ambient temperature: 23 C Input power level: 10 dBm Terminating impedances at fc *: for input: for output:
Filter Specification
TFS 403A
1/5
140 137
-10,2 pF - 8,8 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 403A 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 a rel and for the group delay ripple have to be reached at the frequencies given below even if the centre www.DataSheet4U.com 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 (Reference level) Nominal frequency ae
typ. Value
4,8 dB max.
Limit
5,5 dB
fN PB p-p
a rel
-
403,5 MHz
Pass band Amplitude ripple in PB Relative attenuation fN .......
0,8 dB
fN max.
1,5 MHz 1,5 dB
fN ±
1,5 19,5 100
MHz MHz MHz
28 40 45 12 dB dB dB dB
max. min. min. min. min.
3 25 35 20 8
dB dB dB dB dB
fN ± 4,5 MHz ...... fN ± fN ± 19,5 MHz ....... fN ± 2 fN ± 3 MHz Return loss within PB
Input power level Temperat...
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