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參數資料
| 型號： | TFS851 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 851 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 108K |
| 代理商： | TFS851 |
Filename: tfs 851.doc
Version 1.2
22.06.2005
VI TELEFILTER
Filter specification
TFS 851
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:
50
Output:
50
Characteristics
Remark:
The maximum attenuation in the pass band is defined as the insertion loss ae. The nominal frequency fN is fixed at 851,0 MHz without any tolerance or
limit. The values of absolute attenuation aabs are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating
temperature range is included in the production tolerance scheme.
D a t a
typ. value
tolerance / limit
Insertion loss
ae
2,5
dB
max.
3,5
dB
(reference level)
Nominal frequency
fN
-
851
MHz
Passband
PB
-
fN
± 19
MHz
Pass band ripple
1,8
dB
max.
2
dB
Absolute attenuation
aabs
0,3
MHz
…
170
MHz
28
dB
min.
20
dB
170
MHz
…
720
MHz
22
dB
min.
18
dB
720
MHz
…
790
MHz
24
dB
min.
20
dB
790
MHz
…
815
MHz
28
dB
min.
24
dB
815
MHz
…
818
MHz
28
dB
min.
15
dB
887
MHz
…
925
MHz
37
dB
min.
24
dB
925
MHz
… 1100
MHz
28
dB
min.
22
dB
1100
MHz
… 2000
MHz
29
dB
min.
20
dB
VSWR within PB at 21°C
2,5 : 1
max.
2,7 : 1
Input power level within PB
max.
17
dBm
Operating temperature range
OTR
-
- 40 °C ... + 85°C
Storage temperature range
-
- 40 °C ... + 85°C
Temperature coefficient of frequency
TCf *
-43
ppm/K
*) f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz)
Generated:
Checked / Approved:
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