TFS430B Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Tfs430b.doc
VI TELEFILTER
version 1.2
Filter Specification
TFS 430B
26.11.2002
1/5
Measurement condition
Ambient temperature TA:
Input power level:
Terminating Impedance at fc*:
23 °C
0 dBm.
for input:
for output:
240 6,7 pF
210 7,7 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 430B 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 430 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
tolerance / limit
Insertion loss
(Reference level)
ae = amin
9,2 dB
max. 10
dB
Nominal frequency
fN
Centre frequency
fc
-
430
MHz
430
MHz
Relative attenuation
arel
fN
fN ± 2
…fN ± 2
MHz
MHz …fN ± 3,325 MHz
fN ± 9
fN ± 50
MHz …fN ± 50
MHz …fN ± 100
MHz
MHz
-
-
37
dB
45
dB
max. 1
dB
max. 1,5 dB
min. 30
dB
min. 40
dB
Phase Linearity
fN ± 2 MHz
0,7 °rms
max. 3
°rms
Operating temperature range
Storage temperature range
Temperature coefficient of frequency TC
-
-
- 19
ppm/K
- 30 C ... + 70 C
- 35 C … + 85 C
Frequency inversion temperature
+ 25
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.
generated:
checked / approved:
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