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TFS370 Filter Specification
型号:   TFS370
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描述:   Filter Specification
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品牌   VECTRON [ Vectron International, Inc ]
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Tfs370.doc
version 1.3
29.10.2002
VI
TELEFILTER
Measurement condition
Ambient temperature:
23 C
Input power level:
0 dBm
Terminating impedances *): for input:
for output :
Filter Specification
TFS 370
1/5
170
170
// -0,50 pF
// -0,50 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 370 is the minimum of the pass band attenuation amin . The minimum of the pass band
attenuation amin is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at
the 3 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 370 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 even 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 ripple
(at ambient temperature)
Relative attenuation
fN
fN -
fN -
fN +
ae = amin
typ. value
2,80
dB
tolerance/limit
3 dB
fN
fc
-
370
10 MHz
1,5**
MHz
dB
max.
370 MHz
-
2 dB**
within fN
arel
1,30
60
60
25
60
60
-
-
V
DC
-
dB
dB
dB
dB
dB
db
max.
min.
min.
min.
min.
min.
min.
max.
max.
3 dB
50 dB
30 dB
20 dB
40 dB
57 dB
20 dBm***
10 dBm
12 V
C
C
…f
N
±
10 MHz
80 MHz
…f
N - 100
MHz
35 MHz
…f
N -
25 MHz
…f
N +
57,5MHz
…f
N +
55
MHz
57,5 MHz
fN +
82,5 MHz
fN + 127,5MHz
…f
N + 152,5 MHz
Intermodulation
Input power lewel
Permissible DC voltage
IP3
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
TCf****
- 25 C ... + 75
- 40 C
+ 85
-72
ppm/K
-
*) 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.
**) 2 dB bandwidth (
f
N 10 MHz) is guaranteed at ambient temperature (23°C).
***) intermodulation signals:
f
N
+ 1 MHz and f
N
+ 2 MHz, each of 10 dBm
****) fc(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
CTA
(MHz)
generated:
checked / approved:
VI TELEFILTER
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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