Tfs286.doc
version 1.4
24.03.2000
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VI
TELEFILTER
Measurement Condition
Ambient Temperature:
Input Power Level:
Source impedance:
Load impedance:
Terminating impedances:
input:
output:
Filter specification
23
°C
0 dBm
50
Ω
single ended
50
Ω
single ended
570
Ω
|| -5.5 pF
570
Ω
|| -5.3 pF
TFS 286
1/5
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Construction, pin connection and 50
Ω
test circuit
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel is the pass band attenuation at the nominal frequency f
N
. It is defined as the insertion loss ae. The
nominal frequency fN is fixed to 286,00 MHz. The given values for the relative attenuation arel and for the phase 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
Limit
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Insertion Loss
-
max.
8
dB
a
e
= a
min
(Reference level)
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Nominal Frequency
f
N
-
286,0 MHz
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3 dB - Bandwidth
min. 400
kHz
BW
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Pass Band Ripple
-
max.
±
0,5 dB
f
N
– 80 kHz ... f
N
+ 80 kHz
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Relative Attenuation
arel
f
N
±
1,8 MHz ... f
N
±
6
MHz
-
min. 20
dB
6
MHz ... f
N
±
75
MHz
-
min. 35
dB
f
N
±
MHz ...
f
N
-
75
MHz
-
min. 20
dB
f
N
- 285
75
MHz ... f
N
+ 714
MHz
-
min. 20
dB
f
N
+
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Group delay
-
-
max.
1
µs
f
N
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Group delay ripple
-
max.
1
µs
f
N
– 80 kHz ... f
N
+ 80 kHz
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Input power level
-
max. + 10
dBm
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Operating Temperature Range
- 40 °C ... + 85 °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: (+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.
VECTRON [ Vectron International, Inc ]
