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参数资料
| 型号： | TFS491A |
| 厂商： | VECTRON INTERNATIONAL |
| 元件分类： | 声表面波滤波器 |
| 英文描述： | 1 FUNCTIONS, 491.9 MHz, SAW FILTER |
| 封装： | ROHS COMPLIANT PACKAGE-8 |
| 文件页数： | 1/5页 |
| 文件大小： | 158K |
| 代理商： | TFS491A |
Filename: tfs 491A.doc
Version 1.1
06.06.2006
VI TELEFILTER
Filter specification
TFS 491A
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:
150
Output:
150
Characteristics
Remark:
The nominal frequency fN is fixed at 491,52 MHz. The insertion loss ae is defined as loss value determined at fN. Reference level for the relative
attenuation arel of the TFS 491A is the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the
dB filter attenuation level relative to the insertion loss ae. All specified data are met within the operating temperature range.
D a t a
typ. value
tolerance / limit
Insertion loss
ae
2,4
dB
4,5
dB
(reference level)
Nominal frequency
fN
-
491,52 MHz
Centre frequency
fC
491,90
MHz
-
Bandwidth
BW
3
dB
17,83
MHz
-
Relative attenuation
arel
61,44
MHz … fN -
91,52
MHz
52
dB
min.
50
dB
fN -
91,52
MHz … fN -
61,44
MHz
52
dB
min.
46
dB
fN +
61,44
MHz …
1000,00 MHz
55,5
dB
min.
50
dB
@
122,88
MHz
66,3
dB
min.
60
dB
@
245,76
MHz
64
dB
min.
60
dB
@
368,64
MHz
66,6
dB
min.
55
dB
@
614,40
MHz
64
dB
min.
55
dB
@
737,28
MHz
62,6
dB
min.
54
dB
Operating temperature range
OTR
-
- 40 °C ... + 85°C
Storage temperature range
-
- 45 °C ... + 95°C
Temperature coefficient of frequency
TCf *
-73
ppm/K
*)
f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz).
Generated:
Checked / Approved:
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相关代理商/技术参数 |
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| TFS498 | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Filter specification |
| TFS500 | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Filter specification |
| TFS500A | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Filter specification |
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| TFS52 | 制造商:VECTRON 制造商全称:Vectron International, Inc 功能描述:Minimum of the pass band attenuation |
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