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參數資料
| 型號： | TFS498 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 498 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大?。?/td> | 152K |
| 代理商： | TFS498 |
Filename: tfs 498.doc
Version 1.3
29.07.2004
VI TELEFILTER
Filter specification
TFS 498
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.
Measurement condition
Ambient temperature:
23
°C
Input power level:
0
dBm
Terminating impedance:
Input:
200
Output:
200
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 498 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 498,00 MHz without any tolerance. The given values for both the
relative attenuation arel and the group delay ripple have to be achieved 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
typ. value
tolerance / limit
Insertion loss
ae
3,2
max.
5,0
dB
(reference level)
Nominal frequency
fN
498,00 MHz
Centre frequency
fC
498,00** MHz
Passband
fN ± 8,4
MHz
Pass band ripple
2,0
dB
max.
3,0
dB
Relative attenuation
arel
fN
… fN ±
8,4
MHz
2,0
max.
3,0
dB
fN ±
30,0
MHz … fN ±
38,0
MHz
33,0
min.
28,0
dB
fN ±
38,0
MHz … fN ±
100,0
MHz
50,0
min.
40,0
dB
Operating temperature range
OTR
0 °C ... + 80°C
Storage temperature range
- 40 °C ... + 85°C
Temperature coefficient of frequency
TCf *
-37
ppm/K
*) at 40 °C operating temperature
Generated:
Checked / Approved:
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| TFS500 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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| TFS506 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
| TFS52 | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Minimum of the pass band attenuation |
| TFS520A | 制造商:VECTRON 制造商全稱:Vectron International, Inc 功能描述:Filter specification |
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