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TFS456L Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
Filename: tfs 456l.doc
VI TELEFILTER
Version 1.3
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
550 Ω || -2,5 pF
650 Ω || -2,3 pF
TFS 456L
02.02.2005
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 456L is the minimum attenuation in the pass band. The maximum attenuation in the pass
band is defined as the insertion loss ae. The nominal frequency fN is fixed at 456,0 MHz without any tolerance or limit. The values of relative attenuation
arel are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating temperature range is included in the
production tolerance scheme.
Data
Insertion loss
(reference level)
ae = amin
Nominal frequency
fN
Passband
Relative attenuation
fN -
fN -
1,6 MHz … fN +
1,75 MHz … fN +
f-
N
fN -
fN -
fN -
fN +
fN +
f+
N
455
200
96
36
3,35
4
200
MHz … f -
N
MHz … fN -
MHz … fN -
MHz … fN -
MHz … fN +
MHz … fN +
MHz … f +
N
Absolute Group Delay
Group delay ripple
1,6
1,75
200
96
36
3,35
4
200
490
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
at fN
Return loss within PB
Input power level
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
OTR
TCf **
typ. value
9,2 dB
-
-
-
0,3
1
80
70
60
47
45
45
60
0,6
95
13
-
-
-
20
-0,04
dB
dB
dB
dB
dB
dB
dB
dB
dB
µs
ns
dB
°C
ppm/K²
tolerance / limit
max.
11,0 dB
-
456,0 MHz
fN ± 1,6 MHz
max.
max.
min.
min.
min.
min.
min.
min.
min.
max.
1 dB
3 dB
30 dB
40 dB
50 dB
40 dB
35 dB
40 dB
30 dB
3 µs
max. 220 ns
min.
10 dB
max.
13 dBm
- 40 °C ... + 85°C
- 45 °C ... + 85°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.
**) ∆f(Hz) = TCf(ppm/K²) x (T-T0)² x fcat(MHz).
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.