TFS125C Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Tfs125C.doc
VI TELEFILTER
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc:
version 1.2
Filter Specification
23 °C
0 dBm
input:
output:
605 Ω  -11 pF
620 Ω  -11 pF
TFS 125C
12.07.00
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 125C is the maximum of the pass band attenuation amax. The maximum of the pass
band attenuation amax is defined as the insertion loss ae. The centre frequence 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 nominal frequency f_N is fixed on 125 MHz without tolerance. The given values
for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also 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 (Reference level) ae
max. 8,0 dB
min. 5,0 dB
Nominal frequency
f_N
-
125,0 MHz
Centre frequency
dB Passband ripple
f_c
within ± 150 kHz
Relative attenuation
arel
f_N
..... f_N ± 150 KHz
f_N ± 0,4 MHz...f_N ± 0,6 MHz
f_N ± 0,6 MHz...f_N ± 1,2 MHz
f_N ± 1,2 MHz...f_N ± 1,8 MHz
f_N ± 1,8 MHz...f_N ±3,4 MHz
f_N ± 3,4 MHz...f_N ±9,5 MHz
f_N ± 9,5 MHz.. f_N ±13 MHz
f_N ± 13 MHz...f_N +450 MHz
Group delay **)
Group delay rippel **) within ± 150 kHz
VSWR:
IP3 ***)
Operating temperature range
Temperature coefficient of frequency ( Tcf ) ****)
Frequency inversion temperature To
Input power level:
125,0 MHz
-
-
-
-
-
-
-
-
T.B.D
T.B.D
*) The rejection is relative to the point of maximum insertion at centre frequency
**) measured with smoothing; smoothing aperture ≤ 30 KHz
***) modulation signals: fN and fN-28 MHz each of 10 dBm
****) ∆fc(Hz) = Tcf(ppm/K²) x (To - TA) ² x fCAT (MHz)
Generated:
Checked/Approved:
Sabah
min. 1,25 dB
max.
min.
min.
min.
min.
min.
min.
min.
1,25
2,0
.8,0
20,0
25,0
30,0
43,0
55,0
dB
dB *)
dB
dB
dB
dB
dB
dB
max. 1,7 µs
max. 150,0 ns
max. 2,3: 1
min. 60,0 dB
- 10 °C ... + 85 °C
max. 10,0 dBm
VI TELEFILTER
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Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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