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参数资料
| 型号： | TFH70F |
| 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： | 51K |
| 代理商： | TFH70F |
TFH70F.doc
version 1.2
20.06.2001
VI TELEFILTER
Filter Specification
TFH 70F
1/5
VI TELEFILTER
Vectron International, Inc.
Potsdamer Strae 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail:
tft@telefilter.com
E-Mail:
vti@vtinh.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:
10 dBm
Terminating impedances
*):
for input:
330
-13,7 pF
for output:
250
-15,7 pF
Remark:
Reference level for the relative attenuation arel of the TFH 70F is the insertion loss. The insertion loss ae is defined as the insertion loss at the
nominal frequency fN . 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 given values for the insertion loss, the relative attenuation arel and the group delay ripple have to be reached
at the frequencies given below also 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
20,6
dB
max.
24,0
dB
(Reference level)
Nominal frequency
fN
-
70,0
MHz
Passband
PB
fN ±
0,40
MHz
Passband variation
p-p
0,25
dB
0,65
dB
3
dB bandwidth
BW
1,338 MHz
min.
1,156 MHz
40 dB bandwidth
BW
1,988 MHz
max.
2,180 MHz
Relative attenuation
arel
fN ± 0,578 MHz .......
max.
3
dB
fN - 1,09
MHz .......
fN - 1,50
MHz
43
dB
min.
40
dB
fN + 1,09
MHz .......
fN + 1,50
MHz
45
dB
min.
40
dB
fN ± 1,50
MHz .......
fN ± 4,00
MHz
48
dB
min.
45
dB
fN ± 4,00
MHz .......
fN ± 20
MHz
54
dB
min.
50
dB
Phase linearity in
fN ± 0,578 MHz
3,3
°
max.
5,5
°
Group delay variation in
fN ± 0,578 MHz
105
ns
max. 175
ns
Absolute group delay
3,1
s
max.
4,0
s
Temperature coefficient of frequency Tcf **)
- 0,036 ppm/K
Operating temperature range
- 20..+ 80
°C
Storage temperature range
- 25..+ 85
°C
* ) 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/K2) x (T - TA)2 x fCAT (MHz)
Generated:
Checked / approved:
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