TFS380H Datasheet, PDF (1/5 Pages) Vectron International, Inc – Development specification

TFS380H.doc
VI TELEFILTER
version 1.0
Development specification
Measurement condition
Ambient temperature:
23 C
Input power level:
0 dBm
Terminating impedances at fc *:
input:
output: t.b.d.
t.b.d.
29.07.03
TFS 380H 1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 380H is the attenuation at 380 MHz. The nominal frequency fN is fixed at 380 MHz
without tolerance. 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 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 at fN
(reference level)
-
max. 11 dB
Nominal frequency
fN
Centre frequency
fC
Passband
PB
Amplitude variation within PB
-
380 MHz
-
-
380 MHz
± 0,4 MHz
fN ±
max.
2 MHz
1,5 dB
Relative attenuation
fC
... fC ± 3
MHz
-
fC ± 3 MHz ... fC ± 3,75 MHz
-
fC ± 7,5 MHz ... fC ± 50
MHz
-
max. 1 dB
max. 3 dB
min. 30 dB
Group delay ripple in fN ± 2,5 MHz
-
max. 75 ns
Temperature coefficient of frequency ( Tcf )**
Frequency deviation of fc over temperature T:
Operating temperature range
Storage temperature range
t.b.d.
-
-
-
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
- 40 °C... + 85 °C
- 40 °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.
generated
:
checked / approved
:
TELEFILTER GmbH
Potsdamer Straße 18
D-14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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