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參數資料
| 型號： | TFS438 |
| 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, 438 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 34K |
| 代理商： | TFS438 |
tfs438.doc
VI TELEFILTER
Version 1.0
23.06.2000.
Filter Specification
TFS 438 1/5
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / 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.
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
Measurement condition
Ambient temperature
T
A
:
Input power level:
Terminating impedances:
23 °C
0 dBm.
50
Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 438
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 f
o
is the arithmetic mean value of the upper and lower frequencies at the
3dB
filter attenuation level relative to the insertion loss
ae
. The nominal frequency
fN
is fixed on
438,00 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 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
typ. value
tolerance/ limit
Insertion loss
(Reference level)
ae = amin
3,50
dB
max
4,50
dB
Nominal frequency
f
N
-
438,00
MHz
Centre frequency
f
c
438,0
9,50
MHz
MHz
3 dB - bandwidth
BW
min
4,0
MHz
Relative attenuation
arel
f
N
+ 42,8 MHz
-
min
55,0
dB
Temperature coefficient of the frequency
TC
f
*)
- 32,0
ppm/K
Operating temperature range
-
- 10 °C ... + 55 °C
Storage temperature range
-
- 30 °C ... + 80 °C
*
fc(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
CAT
(MHz)
Generated: Sabah (23.06.00)
Checked/Approved:
相關PDF資料 |
PDF描述 |
|---|---|
| TFS43A | Preliminary Specification |
| TFS440 | VI SAW濾波器(VI SAW Filter) |
| TFS446A | Filter Specification |
| TFS448 | Filter Specification |
| TFS44E | Filter specification |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| TFS440_00 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS440A | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS443 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter Specification |
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