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TFS456K Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
Filename: tfs 456k.doc
VI TELEFILTER
Version 1.3
Filter specification
Measurement condition
Ambient temperature:
23 °C
Input power level:
0 dBm
Source impedance:
200 Ω
Load impedance:
200 Ω
Terminating impedance: *
Input:
248 Ω || - 5,3 pF
Output:
220 Ω || - 6,2 pF
TFS 456K
08.12.2006
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 456K is the minimum of the pass band attenuation. This value is defined as the insertion
loss ae. The nominal frequency fN is fixed at 456,0 MHz without any tolerance. 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
typ. value
tolerance / limit
Insertion loss
(reference level)
ae = amin
Nominal frequency
fN
Passband
PB
Pass band ripple
Relative attenuation
fN -
fN -
5,8 MHz … fN +
6,4 MHz … fN +
f-
N
f-
N
fN -
fN -
fN -
fN +
fN +
f+
N
f+
N
f+
N
455
200
96
47
33
13,5
33
47
96
200
MHz … f -
N
MHz … f -
N
MHz … fN -
MHz … fN -
MHz … fN -
MHz … fN +
MHz … fN +
MHz … f +
N
MHz … f +
N
MHz … f +
N
Absolute Group Delay
5,8
6,4
200
96
47
33
13,5
33
47
96
200
490
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
at fN
Group delay ripple within PB
Return loss within PB
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
OTR
TCf ***
12
dB
13,9 MHz
0,4 dB
0,4
0,5
55
55
49
48
41
42
47
50
60
70
0,42
50
15
-
-
-
-18
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
µs
ns
dB
ppm/K
max.
14,0 dB
min.
max.
456,0
f ± 5,8
N
1,0
MHz
MHz
dB
max.
max.
min.
min.
min.
min.
min.
min.
min.
min.
min.
min.
max.
1 dB
3 dB
30 dB
40 dB
40 dB
45 dB **
40 dB
40 dB
45 dB **
40 dB
40 dB
30 dB
3,0 µs
max. 250 ns
min.
10 dB
max.
15 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.
**) mean value of the relative attenuation within the frequency range
***) ∆f(Hz) = TCf(ppm/K) x (T-T0) 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.
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