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参数资料
| 型号： | TFS644 |
| 厂商： | VECTRON INTERNATIONAL |
| 元件分类： | 声表面波滤波器 |
| 英文描述： | 1 FUNCTIONS, 644.5313 MHz, SAW FILTER |
| 封装： | ROHS COMPLIANT PACKAGE-8 |
| 文件页数： | 1/5页 |
| 文件大小： | 159K |
| 代理商： | TFS644 |
Filename: tfs 644.doc
Version 1.2
19.05.2006
VI TELEFILTER
Filter specification
TFS 644
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 || 0 pF
Output:
150 || 0 pF
Characteristics
Remark:
The minimum attenuation in the pass band is defined as the insertion loss ae. The nominal frequency fN is fixed at 644,5313 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
2,3
dB
max.
4,5
dB
(reference level)
Nominal frequency
fN
-
644,5313 MHz
Centre frequency
fC
644,5313 MHz
-
Bandwidth
BW
3
dB
23,2
MHz
-
Absolute attenuation
aabs
fN -
4,5313 MHz
3,2
dB
max.
5,5
dB
fN -
80
MHz
61,5
dB
min.
52
dB
fN -
160
MHz
69
dB
min.
60
dB
fN -
161,13
MHz
68,6
dB
min.
60
dB
fN -
240
MHz
69
dB
min.
60
dB
fN -
320
MHz
70
dB
min.
60
dB
fN -
322,27
MHz
69
dB
min.
60
dB
fN -
400
MHz
70
dB
min.
60
dB
fN -
480
MHz
70
dB
min.
60
dB
fN -
483,40
MHz
69
dB
min.
60
dB
fN -
560
MHz
59
dB
min.
55
dB
fN +
80
MHz
59
dB
min.
52
dB
fN +
160
MHz
73
dB
min.
60
dB
fN +
161,13
MHz
78
dB
min.
60
dB
fN +
240
MHz
71
dB
min.
60
dB
fN +
320
MHz
68
dB
min.
55
dB
fN +
322,27
MHz
66
dB
min.
55
dB
fN +
400
MHz
66
dB
min.
55
dB
fN +
480
MHz
66
dB
min.
55
dB
fN +
483,40
MHz
66
dB
min.
55
dB
Input power level
-
max.
10
dBm
Operating temperature range
OTR
-
- 40 °C ... + 85°C
Storage temperature range
-
- 55 °C ... + 125°C
Temperature coefficient of frequency
TCf **
- 73
ppm/K
-
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference values
only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.
**)
f(Hz) = TCf(ppm/K) x (T-T0) x fTo(MHz).
Generated:
Checked / Approved:
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