
tfs140e.doc
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VI
TELEFILTER
Filter Specification
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Measurement Condition
Ambient Temperature:
23
°
C
Input Power Level:
0 dBm
Terminating Impedances:
for Input: 860
- 1,2 pF
for Output: 860
- 1,2 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 140 E 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 fo 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 on 140,455 MHz without tolerance. The given values for
the relative attenuation arel 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
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Insertion Loss
ae
(Reference Level)
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Nominal Frequency
f
N
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Relative Attenuation
arel
f
N
± 25
kHz
f
N
± 75
kHz ... f
N
± 125
kHz
f
N
± 125
kHz ... f
N
± 455
kHz
@ f
± 455 kHz
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Intermodulation
(third order IM products)
Intermodulation in the composit signal by
f
N
±
60 kHz and f
N
±
120 kHz each of – 20 dBm
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Operating Temperature Range
Storage Temperature Range
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Temperature Coefficient
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Frequency Inversion Temperature
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Generated:
Checked / Approved:
version 1.3
31.10.00
TFS 140E - 1/4
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VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / 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.
Vectron Technologies, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
typ. Value
Variation/ Limitation
-
max
5
dB
-
140,455 MHz
-
-
-
-
max 3
min
min
min 60
dB
dB
dB
dB
8
20
-
max.
-88 dBm
- 54 °C ... + 100 °
- 40 °C ... + 85 °C
TC
- 0,036 ppm/K2
-
+ 25 °C
-