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参数资料
| 型号： | TFS70AU |
| 厂商： | VECTRON INTERNATIONAL |
| 元件分类： | 声表面波滤波器 |
| 英文描述： | 1 FUNCTIONS, 70 MHz, SAW FILTER |
| 文件页数： | 1/5页 |
| 文件大小： | 161K |
| 代理商： | TFS70AU |
Filename: tfs 70au.doc
Version 1.2
10.01.2006
VI TELEFILTER
Filter specification
TFS 70AU
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:
25
°C
Input power level:
0
dBm
Terminating impedance: *
Input:
36 || 158 pF
Output:
62 || 123 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 70AU 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 70,0 MHz without any tolerance. The given values for both the
relative attenuation arel and the group delay ripple have to be achieved 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
8,8
dB
max.
12,0
dB
(reference level)
Nominal frequency
fN
-
70,0
MHz
Centre frequency
fC **
70,0
MHz
max.
± 60
kHz
Passband
PB
-
fN
± 4,375
MHz
Pass band ripple (p-p)
0,8
dB
max.
1,2
dB
Bandwidth
BW
1
dB
9,2
min.
8,7
MHz
3
dB
9,7
min.
9,4
MHz
40
dB
11,8
max.
12,0
MHz
Relative attenuation
arel
fN -
25,0
MHz … fN -
6
MHz
50
min.
40
dB
fN +
9
MHz … fN +
230
MHz
50
min.
40
dB
Group delay ripple within PB (p-p)
80
max.
150
ns
Operating temperature range
OTR
-
+ 28 °C ... + 32°C
Operable temperature range
-
- 40 °C ... + 85°C
Storage temperature range
-
- 40 °C ... + 85°C
Temperature coefficient of frequency
TCf ***
-94
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.
**) at 30°C
***)
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
Generated:
Checked / Approved:
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