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參數資料
| 型號： | TFS434 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | Filter Specification |
| 中文描述： | 1 FUNCTIONS, 434 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大?。?/td> | 109K |
| 代理商： | TFS434 |
Tfs434.doc
VI
TELEFILTER
version 1.2
07.01.2003
Filter Specification
TFS 434
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances at fc
*:
input:
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 434 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 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. The nominal frequency fN is fixed at 434 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 even 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.
D a t a
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
tft@telefilter.com
E-Mail:
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.
23
°
C
0 dBm
84
// -5,40 pF
output: 84
// -5,40 pF
typ. Value
Limit
Insertion loss
(Reference level)
Nominal frequency
ae
2,60
dB
max.
3,5 dB
fN
-
434
MHz
1 dB - bandwidth
BW
480
kHz
min. 400
kHz
Relative attenuation
fN
arel
0,2 MHz
.......fN ±
0,50
dB
max.
1
dB
fN -
fN - 6 MHz .......fN - 20
fN - 20 MHz .......fN - 424
fN + 1 MHz .......fN + 8
fN + 8 MHz .......fN + 116
fN + 116 MHz .......fN + 566
Input power level
1 MHz ...... fN -
6
MHz
MHz
MHz
MHz
MHz
MHz
22
45
63
13
47
55
dB
dB
dB
dB
dB
dB
min.
min.
min.
min.
min.
min.
15
40
45
10
35
45
dB
dB
dB
dB
dB
dB
-
max. 10
dBm
Temperature coefficient of frequency Tc
f
**
– 0,036 ppm/K2
-
Turn over temperature
10
°C
-
Operating temperature range
-
- 25 °C.. + 80
°C
Storage temperature range
-
- 35 °C.. + 85
°C
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as
reference values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.
**)
f(Hz) = TCf(ppm/K2) x (
T)2 x fTo(MHz)
generated:
checked / approved:
相關PDF資料 |
PDF描述 |
|---|---|
| TFS438 | Filter Specification |
| TFS43A | Preliminary Specification |
| TFS440 | VI SAW濾波器(VI SAW Filter) |
| TFS446A | Filter Specification |
| TFS448 | Filter Specification |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TFS434B | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS434D | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS438 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
| TFS43A | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Preliminary Specification |
| TFS440 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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