TFS224 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

TFS224.doc
VI TELE FILTER
version 1.2
Filter Specification
Measurement condition
Ambient temperature:
23
Input power level:
0
Terminating impedances*):
C
dBm
input: 680
output: 680
-1,8 pF
-1,8 pF
TFS224
05.02.2003
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS224 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 f_N is fixed at 224,0 MHz without tolerance. The given values for
the relative attenuation arel 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
Variation/ Limitation
Insertion loss
(Reference level)
ae = amin
3,5 dB
max 5,2 dB
Nominal frequency
Centre frequency
2 dB bandwidth
fN
-
fc
224,015 MHz
BW
178
kHz
224,0
-
min 100
MHz
kHz
Relative attenuation
fN
... fN 50
fN ± 0,5 MHz ... fN ± 1
fN ± 1 MHz ... fN ± 5
fN ± 5 MHz ... fN ± 200
kHz
MHz
MHz
MHz
Temperature coefficient of the frequency
Frequency inversion temperature
Operating temperature range
Storage temperature range
arel
TCf**)
To
1
dB
41
dB
46
dB
56
dB
-0,036 ppm/K²
13
°C
-
-
max 2
dB
min 10
dB
min 20
dB
min 40
dB
-
-
- 45 °C ... + 75 °C
- 40 °C ... + 85 °C
Input power level
-
max 10
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.
**) fc(Hz) = Tcf(ppm/K²) x (To - TA) ² x fCAT (MHz)
Generated
Checked / approved :
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
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E-Mail: [e-mail]
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