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TFS471C Filter Specification
型号:   TFS471C
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描述:   Filter Specification
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品牌   VECTRON [ Vectron International, Inc ]
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version 1.2
06.01.02
______________________________________________________________________________________________________
tfs471C.doc
VI TELEFILTER
Filter Specification
TFS 471 C 1/4
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Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
23
°C
0 dBm
TBD
Construction and pin connection
see page 2
50
test circuit
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 471 C is the maximum of the attenuation amax. The maximum of the attenuation within
the usable signal bandwidth is defined as the insertion loss ae. The centre frequency fo is the arithmetic mean value of the upper and lower
frequencies at the 3dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 471,55 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 fo 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 fo
D a t a
______________________________________________________________________________________________________
3,5 dB
max.
5 dB
ae = amax
Insertion loss
(Reference level)
______________________________________________________________________________________________________
f
N
Nominal frequency
-
471,55 MHz
______________________________________________________________________________________________________
f
0
Centre frequency
471,55 MHz
-
______________________________________________________________________________________________________
typ. value
Variation/ Limitation
150
kHz
-
BW
3 dB - bandwidth
______________________________________________________________________________________________________
Usable signal bandwidth
-
min. f
N
±
25 kHz
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Relative attenuation
arel
f
N
+ 910 kHz
min. 52
dB
______________________________________________________________________________________________________
-0,036 ppm/K
2
-
TC
f
Temperature coefficient of frequency
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Frequency inversion temperature
+ 25 °C
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Operating temperature range
- 30°C ... + 70°C
______________________________________________________________________________________________________
Generated:
Checked / approved:
______________________________________________________________________________________________________
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: tft@telefilter.com
E-Mail: vti@vtinh.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.
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