TFS468B Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter Specification

tfs468B.doc
VI TELEFILTER
Version 2.2
Filter Specification
1. Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
23 °C
0 dBm.
for input:
for output:
150 Ω  0 pF
150 Ω  0 pF
08.06.2000.
TFS 468 B - 1/4
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 468 B 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 f_o is the arithmetic mean value of the upper and lower frequencies
at the 3dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 468,00 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 also if the centre frequency
fo 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 fo
Data
Insertion loss
(Reference level) ae = amin
Nominal frequency fN
Centre frequency f0
3 dB - bandwidth BW
Relative attenuation arel
fN - 42,8 MHz
Temperature coefficient of the frequency TCf
Operating temperature range
Frequency deviation of fc over temperature
typ. value
3,5 dB
468,0 MHz
9,5 MHz
tolerance/ limit
max.4,5 dB
468,0 MHz
min. 4,0 MHz
65 dB
min. 55 dB
- 32 ppm/K
- 10 °C ... + 55 °C
∆fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
Generated:
Checked/Approved:
Dunzow W.P.
Dr. Bert Wall
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
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