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TFS868L Filter specification
型号:   TFS868L
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描述:   Filter specification
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品牌   VECTRON [ Vectron International, Inc ]
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Filename: tfs 868l.doc
Version 1.1
30.03.2005
VI
TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
Input:
Output:
23
0
50
50
°C
dBm
Filter specification
TFS 868L
1/5
Characteristics
Remark:
The maximum of the pass band attenuation amax is defined as the insertion loss ae. The nominal frequency f
N
is fixed at 868,3 MHz without tolerance.
The given values for the absolute attenuation ae have to be reached at the frequencies given below even if the centre frequency fN 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 fN.
Data
Insertion loss
Nominal frequency
Passband
Absolute attenuation
f
N
-
f
N
-
f
N
+
250
39,3
38,7
kHz
… f
N
+
-
+
250
38,7
39,3
ae = amax
f
N
PB
aabs
kHz
MHz
MHz
OTR
typ. value
2,1
-
-
f
N
dB
tolerance / limit
max.
2,4
868,3
±
0,25
dB
MHz
MHz
2,1
47
47
-
-
dB
dB
dB
max.
min.
min.
2,4
40
45
dB
dB
dB
MHz … f
N
MHz … f
N
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
*)
∆f(Hz)
= TCf(ppm/K) x (T-T
0
) x fTo(MHz).
- 30 °C ... + 80 °C
- 40 °C ... + 90 °C
ppm/K
-
TCf *
- 35
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:
tft@telefilter.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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