TFS57 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs57.doc
VI TELEFILTER
Version 2.2
Filter specification
TFS57
18.09.2003
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *)
Input:
Output:
23
°C
0
dBm
260 || -19,5 pF
260 || -19,5 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 57 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 frequency fc is the arithmetic mean value of the upper and lower frequencies at the 1,5 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency f_N is fixed at 57.6 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)
Nominal frequency
Centre frequency
Pass band
fN – 10,6
MHz ... fN +
ae
fN
fC
10,6 MHz
13,5
-
-
57,6 MHz
max.
15
-
57,6
dB
MHz
Pass band ripple
0,7 dB
max.
1,5 dB
Relative attenuation
fN – 10,6 MHz ... fN +
fN –
fN +
fN +
56,6
27,8
192,4
MHz ... fN –
MHz ... fN +
MHz ... fN +
Group delay ripple within PB
10,6
27,8
192,4
942,4
arel
MHz
***)
0,7 dB
55
dB
48
dB
55
dB
100
ns
max.
min.
min.
min.
max.
1,5 dB
45
dB
45
dB
35
dB
110
ns
Intermodulation IP3
****)
-
min.
30
dBm
1 dB compression point
-
min.
12
dBm
Input power level
-
max.
13
dBm
Temperature coefficient of frequency
TCf **)
-72
ppm/K
Operating temperature range
OTR
-
- 25 °C ... + 85 °C
Storage temperature range
-
- 40 °C ... + 85°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.
**) fc(Hz) = Tcf(ppm/K) x (T - To) x fCAT (MHz).
***) to be fulfilled in any 5 MHz segment of the passband; measurement condistions are: 5MHz span, 1601 points, 10 x averaging
****) fin1= 56,0 MHz; fin2= 59,2 MHz; Pin= 0 dBm fmeasurement1 = 2* fin1- fin2=52,8 MHz; fmeasurement2 = 2* fin2- fin1=62,4 MHz
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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