TFS311A Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

tfs311a.doc
version 1.1
01/99
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VI RELEFILTER
Filter specification
TFS 311 A 1/4
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Measurement condition
Ambient temperature: 23 °C
Input power level:
0 dBm
Terminating impedances
for input: 700 Ω // -2,1 pF
for output: 700 Ω // -2,1 pF
Ext coil:
82 nH
Construction
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 311A 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 311,000 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.
Data
typ. value
tolerance / limit
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Insertion loss
(Reference level)
ae = amin
4,0 dB
max 5
dB
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Nominal frequency
fN
-
311,000 MHz
Centre frequency
fo
311,012 Mhz
-
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Pass band ripple
fN - 68 kHz ... fN + 93 kHz
-
max 1,5 dB
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Relative attenuation
arel
311,0 Mhz - 68 kHz ... 311,0 Mhz + 93 kHz
311,0 MHz ± 330 kHz ... 311,0 MHz ± 400 kHz
0,5 dB
25
dB
max 1,5 dB
min 18
dB
311,0 MHz ± 400 kHz ... 311,0 MHz ± 600 kHz
311,0 MHz ± 600 kHz ... 311,0 MHz ± 1,6 MHz
32
dB
48
dB
min 25
dB
min 30
dB
311,0 MHz ± 1,6 MHz ... 311,0 MHz ± 3,0 MHz
311,0 MHz ± 3,0 MHz ... 311,0 MHz ± 20 MHz
50
dB
55
dB
min 38
dB
min 45
dB
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Group delay distortion GDD
311,0 MHz ± 50 kHz
311,0 MHz ± 70 kHz
0,4 µs
0,7 µs
max 1,2 µs
max 1,5 µs
311,0 MHz ± 100 kHz
1,0 µs
max 2,5 µs
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Operating temperature range
- 20 °C ... + 70 °C
Storage temperature range
- 30 °C ... + 85 °C
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Temperature coefficient of frequency TCf
- 0,036 ppm/K²
-
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Frequency inversion temperature
+ 25
°C
-
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Generated:
Checked / approved:
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VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: [phone] / Fax: [phone]
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
E-Mail: [e-mail]
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