TFS140H Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

File name: Tfs 140H.doc
VI TELEFILTER
Filter specification
Version 1.2
TFS 140H
19.11.2002
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc * ) :
23 °C
0 dBm.
for input: 65
for output: 65
- 17 pF.
-17 pF.
2. Characteristics :
Remark: Reference level for the relative attenuation arel of the TFS 140H 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 reference 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 temperature coefficient of frequency Tcf is valid both for the
reference frequency fN and the frequency response of the filter in the operating temperature range. The frequency shift of the filter in the operating
temperature range is not included in the production tolerance scheme
Data
typ. value
tolerance / limit
Insertion loss (Reference level)
ae
22,7 dB
max. 25
dB
Reference frequency at ambient temperature TA:
fN
Centre frequency at ambient temperature TA (fCAT) fc
140,0 MHz
140,0
MHz
Pass band at ambient temperature :
PB
fN - 4,2 MHz.....fN + 4,2 MHz
Amplitude ripple (p-p):
fN ... fN ± 3,85 MHz
Bandwidth at ambient temperature :
1 dB
3 dB
20 dB
40 dB
0,4 dB
8,26
8,67
9,72
10,22
MHz
MHz
MHz
MHz
max. 1
dB
min. 7,7
min. 8,4
-
max. 10,6
MHz
MHz
MHz
Relative attenuation at ambient temperature
arel
fN
...
fN ± 3,85 MHz ...
fN ± 5,3 MHz ...
fN ± 39 MHz ...
fN ± 3,85
fN ± 4,2
fN ± 39
fN ± 41
MHz
MHz
MHz
MHz
Group delay ( mean value in pass band ):
Group delay ripple in pass band (p-p):
Deviation from linear phase in pass band (p-p):
0,4
2
50
62...65
2,03
60
± 1,8
dB
dB
dB
dB
µs
ns
degree
max. 1
dB
max. 3
dB
min. 40
dB
min. 60
dB
max. 100
ns
-
S11 in PB :
3 dB
-
S22 in PB :
3 dB
-
Triple transit attenuation compared to main signal
47 dB
-
Crosstalk
60...65 dB
-
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature :
Operating temperature range
Storage temperature range
- 20 ppm/K
-
fc(Hz) = Tcf(ppm/K) x (T - To) x fCAT (MHz)
-
-
- 40 °C ... + 85 °C
-
- 40 °C ... + 85 °C
*) The terminating impedances and insertion loss 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:
Dunzow W.
Dr. Bert Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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