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參數(shù)資料
| 型號： | TFS140F |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | VI SAW Filter(VI SAW 濾波器(輸入電阻:448Ω/-13.8pF,輸出電阻:374Ω/14.5pF)) |
| 中文描述： | 1 FUNCTIONS, 140 MHz, SAW FILTER |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 66K |
| 代理商： | TFS140F |
tfs 140F.doc
VI TELEFILTER
Version 1.4
18.07.2000
Filter Specification
TFS 140F - 1/5
VI TELEFILTER
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.
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
1. Measurement condition
Ambient temperature
T
A
:
Input power level:
Terminating impedances at fc:
Q-value of matching elements:
2. Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 140F
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 reference 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 temperature coefficient of frequency
Tc
f
is valid
both for the reference frequency
fc
and the frequency response of the filter in the operating temperature range. The frequency shift of the filter
in the operating temperature range is not included in the production tolerance scheme
Data
23 °C
0 dBm.
for input:
for output:
50
448
- 13,8 pF.
374
- 14,5 pF.
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae
18,5...19,0 dB
max. 20 dB
Centre frequency
fc
at ambient temperature T
A
(
f
CAT
)
140,01 MHz
140 ± 0,06 MHz
Pass band
at ambient temperature T
A
:
f
C
- 1,55 MHz.....f
C
+ 1,55 MHz
Amplitude ripple (p-p):
f
C
... f
C
± 1,35 MHz
0,5 dB
f
C
± 1,35 MHz f
C
± 1,42 MHz
0,7 dB
Bandwidth
at ambient temperature
:
1,0 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
45 dB - band width
2,88 MHz
3,15 MHz
3,83 MHz
4,20 MHz
4,24 MHz
min. 3,10 MHz
max. 4,60 MHz
max.11,88 MHz
Relative attenuation
arel
f
C
f
C
± 2,30
f
C
± 5,94
............
MHz
MHz
f
C
± 1,55 MHz
f
C
± 5,94 MHz
f
C
± 40
-
max.
min.
min.
3 dB
40 dB
45 dB
.....
.....
45...55 dB
60....70 dB
MHz
Group delay ( mean value in pass band ):
Group delay ripple in pass band (p-p):
Deviation from linear phase in pass band (p-p):
2,49 μs
max. 2,5 μs
max. 200 ns
max. 10°
140...170 ns
5...6 ° (r.m.s. 1,4°)
Input VSWR (S11) in PB :
Output VSWR (S22) in PB :
Triple transit attenuation compared to main signal
Crosstalk
1,3 : 1
1,4 : 1
max. 2 : 1
max. 2 : 1
min.
41...42 dB
52...55 dB
40 dB
Substrate material
Frequency inversion temperature ( T
)
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature: * )
Quartz
25° C
-0,045
ppm/K2
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
)2 x
f
To
(MHz)
Operating temperature range
Storage temperature range
0 °C ... + 70 °C
- 40 °C ... + 85 °C
* ) f
To
is reference frequence
fc
at frequency inversion temperature (
T
o
)
Generated:
Checked/Approved:
Dunzow W.P.
Dr. Bert Wall
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