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參數(shù)資料
| 型號(hào)： | TFS44K |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 44.06 MHz, SAW FILTER |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 74K |
| 代理商： | TFS44K |
Filename: tfs 44k.doc
Version 1.4
19.08.2005
VI TELEFILTER
Filter specification
TFS 44K
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 digital cable TV
Measurement condition
Ambient temperature TA:
25
°C
Input power level:
0
dBm
Terminating impedance:
source:
50
load:
2 k
II 3 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 44K is the insertion loss. The insertion loss ae is defined as the insertion loss at the nominal
frequency fN. 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
15,0
dB
14,7
dB
±
1,5 dB
(reference level)
Nominal frequency
fN
-
44,06 MHz
Centre frequency
fc at ambient temperature TA
44,06 MHz
-
Bandwidth
3 dB
6,0
MHz
-
30 dB
7,6
MHz
-
Relative attenuation
arel
fN
...
fN ±
2,53
MHz
0,4
dB
-
41,53
MHz
0,3
dB
-
46,59
MHz
0,4
dB
-
41,06
MHz
-
2,7
dB ± 1,2
dB
47,06
MHz
-
3,0
dB ± 1,2
dB
47,31
MHz
8,3
dB
-
39,81
MHz
42
dB
min.
40
dB
35,06 MHz
...
39,46
MHz
48
dB
min.
43
dB
39,46 MHz
...
40,06
MHz
41
dB
min.
38
dB
48,06 MHz
...
49,06
MHz
37
dB
min.
35
dB
49,06 MHz
...
50,06
MHz
45
dB
min.
37
dB
50,06 MHz
...
55,06
MHz
48
dB
min.
43
dB
Reflected wave signal suppression
52
dB
min.
42
dB
1,3 s...6,0 s after main pulse
Feedthrough signal suppression
52
dB
min.
50
dB
Group delay ripple
p-p in fN ± 2,53 MHz
35
ns
-
Operable temperature range
-
-25 °C ..... 65
°C
Storage temperature range
-
-40 °C ..... 85
°C
Temperature coefficient of frequency TCf*
-72
ppm / K
-
DC voltage
VDC
-
max.
12
V
AC voltage
Vpp
-
max.
10
V
*)
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
generated:
checked / approved:
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| TFS44M | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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| TFS450 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
| TFS450A | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS451A | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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