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參數(shù)資料
| 型號： | TFS42 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 42.45 MHz, SAW FILTER |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 62K |
| 代理商： | TFS42 |
Filename: tfs 42.doc
Version 1.2
19.08.2005
VI TELEFILTER
Development specification
TFS 42
1/5
Tele Filter GmbH
Potsdamer Strae 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.
Description
IF filter for cable transmitter stations
Measurement condition
Ambient temperature TA:
25
°C
Input power level:
0
dBm
Terminating impedance:
source:
50
load:
2 k
II 3 pF
Characteristics
Remark:
The nominal frequency fN is fixed at 42,45 MHz. The insertion loss ae is defined as loss value determined at fN. Reference level for the relative attenuation
arel of the TFS 42 is the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 3 dB filter
attenuation level relative to the insertion loss ae.
D a t a
typ. Value
Limit
Insertion loss
-
20,3
±
1,5
dB
(reference level)
Nominal frequency
fN
-
42,45
MHz
Centre frequency
fc at ambient temperature TA
-
42,45 MHz ± 0,055 MHz
Bandwidth
1 dB
8,8
MHz
-
3 dB
9,3
MHz
-
30 dB
10,9
MHz
-
Group delay ripple
p-p in fc ± 4,4 MHz
40
ns
-
Relative attenuation
arel
37,97
MHz
1,6
dB
-
46,92
MHz
-
1,1
±
1
dB
37,75
MHz
-
3,1
±
1,2
dB
47,15
MHz
-
3,2
±
1,2
dB
36,70
MHz
-
min.
35
dB
55,52
MHz
-
min.
42
dB
lower side lobe
29,37 ... 34,66
MHz
-
min.
36
dB
34,66 ... 36,72
MHz
-
min.
32
dB
upper side lobe
47,81 ... 51,1
MHz
-
min.
32
dB
51,1 ...
58,75
MHz
-
min.
36
dB
Reflected wave signal suppression
-
min.
42
dB
1,2 s...6,0 s after main pulse
Feed through signal suppression
-
min.
50
dB
Operable temperature range
-
-25 ...
65
° C
Storage temperature range
-
-40 ...
85
° C
Temperature coefficient of frequency TCf*
- 0,072
ppm / K
-
*)
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
Generated:
Checked / Approved:
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相關代理商/技術參數(shù) |
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| TFS420B | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS420H | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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