TFS211C_02 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Filename: tfs211c.doc
VI TELEFILTER
version 3.0
Filter Specification
TFS 211 C
23.01.2002
1/5
Measurement condition
Ambient temperature:
Input power level:
terminating impedances *
Input:
Output:
20 ... 25 °C
5 ± 2 dBm
1,1 kΩ || -5.1pF
1,1 kΩ || -5.2pF
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS 211C is the minimum of the pass band attenuation amin. This value is defined as the
insertion loss ae. The centre frequency 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 given values for the relative attenuation arel and 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
limit
Insertion loss
ae = amin
6 ... 7 dB
min. 4,5 dB
max. 8 dB
Nominal frequency
fN
Centre frequency
fc
Relative attenuation
arel
fN - 200 kHz ... fN + 200
1
fN ± 600
fN ± 1,2
fN + 1,8
fN + 7,0
1,0
2,0
3,0
MHz ... fN - 1,8
kHz ... fN ± 1,2
MHz ... fN ± 1,8
MHz ... fN + 7,0
MHz ...
1,0
GHz ...
2,0
GHz ...
3,0
GHz ...
4,0
kHz
MHz
MHz
MHz
MHz
GHz
GHz
GHz
GHz
-
211,0
MHz
0,5
dB
-
-
-
-
-
-
35
dB
30
dB
211,0
-
MHz
max. 1 dB
min. 30 dB
min. 10 dB
min. 20 dB
min. 30 dB
min. 45 dB
min. 40 dB
-
-
Group delay ripple GD
fN - 200 kHz ... fN + 200 kHz
Input power level
-
max. 350 ns
-
max. + 10 dBm
Permissible DC voltage
-
max. 10 V
Operating temperature range **
-
- 35 °C ... + 85 °C
Storage temperature range
-
- 35 °C ... + 85 °C
Temperature coefficient
TC ***
- 0,036 ppm/K²
-
Frequency inversion temperature T0
25
°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.
**) If the filter is used between -10°C and -35°C all given frequencies may be changed down to max. - 30 kHz
***) ∆f(Hz) = TCf(ppm/K) x (T-T0)² x fTo(MHz)
Generated:
Checked / approved:
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