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参数资料
| 型号： | TFS868H |
| 厂商： | VECTRON INTERNATIONAL |
| 元件分类： | 声表面波滤波器 |
| 英文描述： | 1 FUNCTIONS, 868.3 MHz, SAW FILTER |
| 文件页数： | 1/5页 |
| 文件大小： | 115K |
| 代理商： | TFS868H |
Filename: tfs 868h.doc
Version 1.2
05.08.2005
VI TELEFILTER
Filter specification
TFS 868H
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:
120 || -2,4 pF
Output:
140 || -2,4 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 868H 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 868,30 MHz without tolerance. The given values for the relative
attenuation arel have to be reached 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
2,85
dB
max.
3,8
dB
(reference level)
Nominal frequency
fN
-
868,30 MHz
Centre frequency
fC
868,30
MHz
-
Passband
PB
1,30
MHz
min.
± 300
kHz
Pass band ripple
p-p
0,6
dB
max.
3
dB
Amplituden ripple fN ± 200kHz
p-p
0,45
dB
max.
2
dB
Relative attenuation
arel
fN
… fN ±
200,0
kHz
0,45
dB
max.
2
dB
fN ±
200,0
kHz
… fN ±
300,0
kHz
0,52
dB
max.
3
dB
fN -
858,3
MHz … fN -
12,3
MHz
56
dB
min.
50
dB
fN -
12,3
MHz … fN -
2,8
MHz
36
dB
min.
30
dB
fN +
2,7
MHz … fN +
11,7
MHz
41
dB
min.
30
dB
fN +
11,7
MHz … fN +
21,7
MHz
43
dB
min.
40
dB
fN +
21,7
MHz … fN +
27,7
MHz
51
dB
min.
45
dB
fN +
27,7
MHz … fN +
131,7
MHz
57
dB
min.
50
dB
Input power level
-
max.
17
dBm
Operating temperature range
OTR
-
- 45 °C ... + 120°C
Storage temperature range
-
- 45 °C ... + 120°C
Frequency inversion temperature
10
°C
Temperature coefficient of frequency
TCf **
-0,037
ppm/K
2
*) 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.
**)
fc(Hz) = Tcf(ppm/K) x (To - TA) x fCAT (MHz)
Generated:
Checked / Approved:
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