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參數資料
| 型號： | TFS312 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 312.5 MHz, SAW FILTER |
| 封裝： | ROHS COMPLIANT PACKAGE-8 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 157K |
| 代理商： | TFS312 |
Filename: tfs 312.doc
Version 1.2
25.08.2006
VI TELEFILTER
Filter specification
TFS 312
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 maximum attenuation in the pass band is defined as the insertion loss ae. The nominal frequency fN is fixed at 312,5 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
2,2
dB
max.
4,5
dB
(reference level)
Nominal frequency
fN
-
312,5
MHz
Pass band
PB
-
fN
±
1,5
MHz
Bandwidth
BW
3
dB
7,36
MHz
-
Absolute attenuation
aabs
fN -
300
MHz … fN -
233
MHz
58
dB
min.
52
dB
fN -
233
MHz … fN -
77
MHz
54
dB
min.
50
dB
fN -
77
MHz … fN -
38
MHz
53
dB
min.
48
dB
fN +
50
MHz … fN +
97
MHz
52
dB
min.
48
dB
fN +
97
MHz … fN +
155
MHz
48
dB
min.
44
dB
fN +
155
MHz … fN +
233
MHz
52
dB
min.
48
dB
fN +
233
MHz … fN +
273
MHz
54
dB
min.
50
dB
fN +
273
MHz … fN +
687,5
MHz
54
dB
min.
52
dB
Input power level
max.
10
dBm
Operating temperature range
OTR
-
- 40 °C ... + 85 °C
Storage temperature range
-
- 45 °C ... + 95 °C
Temperature coefficient of frequency
TCf *
-32
ppm/K
*)
f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz).
Generated:
Checked / Approved:
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