TFS380E Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Filename: tfs380e.doc
VI TELEFILTER
version 1.1
Filter Specification
TFS 380E
20.02.2003
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance at fc *:
23 C
0 dBm
input: 1,00 k
output: 1,07 k
// -5,1 pF
// -4,6 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS 380E 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
15
dB
max. 17 dB
Nominal frequency
fN
Centre frequency
fc
-
380
MHz
380 MHz
-
Relative attenuation
arel
fN
... fN ± 2,025 MHz
fN ± 2,5 kHz ... fN ± 3
MHz
fN ± 3,0 MHz ... fN ± 3,25 MHz
fN ± 3,25 MHz ... fN ± 3,5 MHz
fN ± 3,5 MHz ... fN ± 5
MHz
fN ± 5 MHz ... fN ± 100
MHz
0,4 dB
4
dB
13
dB
23
dB
34
dB
45
dB
max. 1 dB
min. 3 dB
min. 10 dB
min. 20 dB
min. 30 dB
min. 40 dB
Group delay ripple in fN ± 2,025 MHz
48
ns
max. 100 ns
Operating temperature range
-
0 C...+ 70 C
Storage temperature range
-
- 35 C.. + 85 C
Temperature coefficient
TC **
- 0,04 ppm/K²
-
Frequency inversion temperature T0
30
°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/K) x (T-T0)² x fTo(MHz)
generated:
checked / approved:
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D 14 513 TELTOW / Germany
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