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參數資料
| 型號： | TFS120 |
| 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:460Ω/-11.2pF,輸出電阻:440Ω/-13.0pF)) |
| 中文描述： | 1 FUNCTIONS, 120.01 MHz, SAW FILTER |
| 文件頁數： | 1/4頁 |
| 文件大?。?/td> | 42K |
| 代理商： | TFS120 |
Tfs120.doc
Version 1.2
23.03.2000
VI TELEFILTER
Filter Specification
TFS 120 - 1/4
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / 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
Measurement condition
Ambient temperature
T
A
:
Input power level:
Terminating impedances at
f
N
:
Q-value of matching elements:
Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 120
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
25 dB
filter attenuation level relative to the insertion loss
ae
. The nominal frequency
fN
is fixed on
120 MHz
without tolerance. The given values for
the relative attenuation
arel
and for 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
Tc
f
in the operating temperature range and due to a production tolerance for the centre
frequency
fc
.
Data
23 °C
0 dBm.
for input:
for output:
30
460
- 11,2 pF.
440
- 13,0 pF.
( typical value.)
typ. value
tolerance / limit
Insertion loss
(Reference level) :
ae
12,50
dB
max
15
dB
Nominal frequency :
fN
120
MHz
Centre frequency
fc
at ambient temperature
( f
CAT
)
120,01
MHz
Pass band :
fN – 100 kHz ..... fN + 100 kHz
Bandwidth :
Amplitude ripple in pass band (p-p):
1 dB - band width
25 dB - band width
260
764
0,7
kHz
MHz
dB
min. 200
max. 800
max. 1,0
kHz
kHz
dB
Relative attenuation
arel :
Group delay (mean value in pass band) :
fN
fN ± 400
fN ± 600
fN ± 1,0
..... fN ± 100
kHz ...
fN ± 600
kHz ...
fN ± 1000
MHz ... fN ± 35
kHz
kHz
kHz
MHz
-
-
-
-
μs
max.
min.
min.
min.
max. 4,0
1
dB
dB
dB
dB
μs
25
35
45
3,81
Group delay ripple in pass band (p-p) :
100...150
ns
max. 200
ns
Deviation from linear phase in pass band :
-
Triple transit attenuation compared to main signal
40...50
dB
Crosstalk attenuation compared to main signal
55...60
dB
Frequency inversion temperature ( T
o
)
30 °C
Temperature coefficient of frequency ( Tc
f
)
-0,042
ppm/ K2
Frequency deviation of fc over temperature T : *):
fc(Hz) = Tc
f
x (T - T
o
)2 x f
To
(MHz)
Operating temperature range
- 20 °C ... + 75 °C
Storage temperature range
- 40 °C ... + 85 °C
Permissible DC voltage
(
VDC
)
(
Vpp
)
-
12
V
Permissible AC voltage
-
10
V
* ) f
To
is reference frequency
fc
at frequency inversion temperature (
T
o
)
Generated:
Checked / approved
:
Dunzow W.
Dr. B.Wall.
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