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TFS57 Filter specification
型号:   TFS57
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描述:   Filter specification
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品牌   VECTRON [ Vectron International, Inc ]
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Filename: tfs57.doc
Version 2.2
18.09.2003
VI
TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *)
Input:
Output:
Characteristics
Remark:
23
0
260
260
°C
dBm
Filter specification
TFS57
1/5
|| -19,5 pF
|| -19,5 pF
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
Insertion loss
(reference level)
Nominal frequency
Centre frequency
Pass band
f
N
–
10,6
MHz ... f
N
+
10,6
MHz
ae
f
N
f
C
typ. value
13,5
-
-
57,6
MHz
tolerance / limit
max.
15
-
57,6
dB
MHz
Pass band ripple
Relative attenuation
f
N
f
N
f
N
f
N
–
–
+
+
10,6
56,6
27,8
192,4
MHz ... f
N
MHz ... f
N
MHz ... f
N
MHz ... f
N
+
–
+
+
10,6
27,8
192,4
942,4
***)
****)
0,7
arel
MHz
dB
max.
1,5
dB
0,7
55
48
55
100
-
-
-
dB
dB
dB
dB
ns
max.
min.
min.
min.
max.
min.
min.
max.
1,5
45
45
35
110
30
12
13
dB
dB
dB
dB
ns
dBm
dBm
dBm
Group delay ripple within PB
Intermodulation IP3
1 dB compression point
Input power level
Temperature coefficient of frequency
Operating temperature range
Storage temperature range
TCf **)
OTR
-72
-
-
ppm/K
- 25
°C
... + 85
°C
- 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) = Tc
f
(ppm/K) x (T - T
o
) x f
CAT
(MHz).
***) to be fulfilled in any 5 MHz segment of the passband; measurement condistions are: 5MHz span, 1601 points, 10 x averaging
****) f
in1
= 56,0 MHz; f
in2
= 59,2 MHz; P
in
= 0 dBm f
measurement1
= 2* f
in1
- f
in2
=52,8 MHz; f
measurement2
= 2* f
in2
- f
in1
=62,4 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:
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.
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