TFS398B Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Tfs398B.doc
VI TELEFILTER
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
version 1.0
Filter Specification
23 °C
0 dBm
input:
output:
t.b.d.
t.b.d.
10.05.2001
TFS 398B
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 398B is the minimum of the pass band attenuation aminIt is defined as the insertion loss
ae. The centre frequence fc is the arithmetic mean value of the upper and lower frequencies at the 1 dB filter attenuation level relative to the
insertion loss ae. The nominal frequency f_N is fixed on 398 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 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
max. 12,0 dB *)
Nominal frequency
f_N
Centre frequency
f_c
1 dB Passband width
Relative attenuation
f_N
f_N ± 13,5 MHz
f_N - 298
f_N - 88
f_N - 33
f_N + 72
MHz
MHz
MHz
MHz
Phase linearity
arel
f_N ± 13,5 MHz
f_N ± 15 MHz
f_N - 88
f_N - 58
f_N - 30
f_N ± 602
MHz
MHz
MHz
MHz
Operating temperature range
Temperature coefficient of frequency ( Tcf ) ***)
Frequency inversion temperature To
Input power level:
*) at room temperature
-
398,0 MHz
-
-
-
-
-
-
94 ppm/ K
t.b.d
398,0 MHz
min. ± 15,0 MHz
max. 0,7
max. 1,0
min. 40
min. 45
min. 50
min. 40
max. 4,0
dB
dB
dB
dB
dB
dB
° p-p
- 30 °C ... + 70 °C
max. 10,0 dBm
Generated:
Checked/Approved:
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Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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