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TFS380A Filter specification
型号:   TFS380A
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描述:   Filter specification
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品牌   VECTRON [ Vectron International, Inc ]
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tfs380a.doc
version 3.0
13.03.2001
VI
TELEFILTER
Filter specification
TFS 380A
1/5
Measurement Condition
Ambient Temperature:
Input Power Level:
Source impedance:
Load impedance:
Terminating impedances:
input:
output:
23
0
50
50
°C
dBm
720
|| -4.7pF
1000
|| -4.1pF
Characteristics
Remark:
Reference level for the relative attenuation arel is the minimum pass band attenuation a
min
. It is defined as the insertion loss ae. The nominal
frequency fN is fixed to 380,0 MHz. The center frequency fc is the arithmetic mean value of the upper and lower frequencies at the 1 dB filter
attenuation level relative to the insertion loss ae The given values for the insertion loss, the relative attenuation arel and the group delay ripple have
to be reached at the frequencies given below also if the centre frequency fc 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 fc.
Data
Insertion Loss
(Reference level)
Nominal Frequency
1 dB - Bandwidth
Relative Attenuation
fN ± 2,5
fN ± 3,0
fN ± 3,25
fN ± 3,5
fN ± 5,0
MHz ... fN ± 3,0
MHz ... fN ± 3,25
MHz ... fN ± 3,5
MHz ... fN ± 5,0
MHz ... fN ± 100,0
a
e
= a
min
typ. Value
14,0 dB
max.
Limit
17
dB
f
N
BW
-
4,2 MHz
min.
380,0 MHz
4,05 MHz
arel
MHz
MHz
MHz
MHz
MHz
5
20
35
38
50
dB
dB
dB
dB
dB
min.
min.
min.
min.
min.
3
10
20
30
40
dB
dB
dB
dB
dB
Pass Band Ripple
fN ± 2,025 MHz
Group delay ripple
fN ± 2,025 MHz
ϕ
0,4 dB
max.
1
dB
65
ns
max. 100
ns
Operating Temperature Range
- 0 °C ... + 70 °C
Generated:
Checked / approved:
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
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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