TFS455A1 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs455A1.doc
VI TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
Version 1.0
Filter specification
23
°C
0
dBm
50
50
TFS455A1
30.09.2003
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS455A1 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 455,0 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)
Nominal Frequency
Centre Frequency
Passband at 23°C
2,8 dB
ae
1,35 dB
-
fN
-
fC
455
MHz
PB
7,8 MHz
2,8
-
455,0
-
dB
MHz
min.
5
MHz
Relative Attenuation
arel
fN -
fN -
fN +
fN +
10,0 MHz … fN -
105 MHz … fN -
8,0 MHz … fN +
12,5 MHz … fN +
Operating Temperature Range
105
454,7
12,5
1545
MHz
MHz
MHz
MHz
OTR
Storage Temperature Range
Temperature Coefficient of Frequency
TCf **
39
dB
40
dB
42
dB
40
dB
-
-
-32
ppm/K²
min.
25
dB
min.
30
dB
min.
30
dB
min.
25
dB
- 10 °C ... + 85 °C
- 45 °C ... + 90 °C
-
Input Power Level
-
max.
25
dBm
*) 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.
**) f(Hz) = TCf(ppm/K) x (T-T0)² x fTo(MHz).
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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