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Filename: tfs 770f.doc
Version 1.2
08.05.2006
VI TELEFILTER
Filter specification
TFS 770F
1/5
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Measurement condition
Ambient temperature:
23
°C
Input power level:
0
dBm
Terminating impedance:
Input:
50
Ω
Output:
50
Ω
Characteristics
Remark:
The maximum attenuation in the pass band is defined as the insertion loss ae. The nominal frequency fN is fixed at 770 MHz without any tolerance or limit.
The values of absolute attenuation aabs are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating
temperature range is included in the production tolerance scheme.
D a t a
typ. value
tolerance / limit
Insertion loss
ae
1,5
dB
max.
3,2
dB
(reference level)
Nominal frequency
fN
-
770,0
MHz
Passband
PB
-
fN
±
2,5
MHz
Pass band ripple
0,6
dB
max.
1,0
dB
Absolute attenuation
aabs
0,3
MHz
…
750
MHz
42
dB
min.
38
dB
790
MHz
… 1400
MHz
44
dB
min.
38
dB
Group delay variation within PB
25
ns
max.
60
ns
VSWR within PB
1,4 : 1
max.
2 : 1
Input power level
-
max.
15
dBm
Operating temperature range
OTR
-
- 40 °C ... + 85°C
Storage temperature range
-
- 55 °C ... + 85°C
Temperature coefficient of frequency
TCf *
- 35
ppm/K
*)
∆fc(Hz) = Tcf(ppm/K) x (T - To) x fCAT (MHz).
Generated:
Checked / Approved:
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