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TFS125C_04 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification
Filename: tfs 125c.doc
VI TELEFILTER
Version 1.3
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
605 Ω || -11 pF
620 Ω || -11 pF
TFS 125C
15.10.2004
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 125C is the maximum attenuation in the pass band. The maximum attenuation in the pass
band is defined as the insertion loss ae. The nominal frequency fN is fixed at 125,0 MHz without any tolerance or limit. The values of relative attenuation
arel 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.
Data
typ. value
tolerance / limit
Insertion loss
ae
(reference level)
Nominal frequency
fN
Passband
PB
Pass band ripple
Relative attenuation
fN ±
fN ±
fN ±
fN ±
fN ±
fN ±
fN +
0,4 MHz ... fN ±
0,6 MHz ... fN ±
1,2 MHz ... fN ±
1,8 MHz ... fN ±
3,4 MHz ... fN ±
9,5 MHz ... fN ±
13,0 MHz ... fN +
Absolute group delay within PB
Group delay ripple within PB
0,6
1,2
1,8
3,4
9,5
13,0
450,0
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
6,5 dB
-
-
-
0,80 dB
3,0 dB
9,5 dB
22,5 dB
30,0 dB
37,0 dB
53,0 dB
60,0 dB
1,3 µs
60,0 ns
max.
min.
8 dB
5 dB
125,0 MHz
fN
±
max.
150 kHz
1,25 dB
min.
min.
min.
min.
min.
min.
min.
max.
max.
2
dB
8
dB
20
dB
25
dB
30
dB
43
dB
55
dB
1,7 µs
150,0 ns
VSWR
1,4:1
max.
2,3:1
Intermodulation
**
80
dB
min.
60 dB
Input power level
-
max.
10 dBm
Operating temperature range
OTR
-
- 10 °C ... + 85 °C
Storage temperature range
-
- 40 °C ... + 85 °C
Frequency inversion temperature
T0
50
°C
-
Temperature coefficient of frequency
TCf ***
-0,032 ppm/K²
-
*) 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.
**) fin1= 111 MHz; fin2= 97 MHz; Pin= 10 dBm fmeasurement = 125 MHz
***) ∆fc(Hz) = Tcf(ppm/K²) x (To - TA) ² x fCAT (MHz)
Generated:
Checked / Approved:
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.