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參數資料
| 型號： | TFS420A1 |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | Filter specification |
| 中文描述： | 1 FUNCTIONS, 420 MHz, SAW FILTER |
| 文件頁數： | 1/4頁 |
| 文件大小： | 56K |
| 代理商： | TFS420A1 |
tfs 420A1.doc
VI TELEFILTER
Version 1.0
06.01.02
Filter specification
TFS 420 A1 - 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
1. Measurement condition
Ambient temperature
T
A
:
Input power level:
Typical terminating impedances in
f
N
:
23 °C
0
dBm
for input:
for output:
210
-5,38 pF.
174
-3,99 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 420A1
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 nominal frequence
f
is fixed at
420,0 MHz
without tolerance or limit. The
reference frequence
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.
Data
Insertion loss
(Reference level)
Nominal frequency
Centre frequency
Pass band (-1dB)
Amplitude ripple (p-p):
f
N
... f
N
± 4,1 MHz
Bandwidth
at ambient temperature
:
1 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
Relative attenuation
f
N
f
N
± 4,1
f
N
± 5,5
f
N
± 10
f
N
- 430
f
N
+ 100
Average group delay
in pass band
:
Group delay ripple
in pass band
(p-p):
Triple transit attenuation compared to main signal:
Crosstalk
Frequency inversion temperature ( T
o
)
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature T : *)
Operating temperature range
Storage temperature range
Input power level
typ. value
21,5
-
420,03
tolerance / limit
max 24
420,0
-
f
N
- 4,1 MHz ... f
N
+ 4,1 MHz
max 1,0
ae
f
N
dB
dB
MHz
fc
at ambient temperature
( f
CAT
)
MHz
0,4
dB
dB
9,14
10,50
14,23
15,91
MHz
MHz
MHz
MHz
arel
f
N
± 4,1
f
N
± 5,0
f
N
± 10
f
N
± 100
f
N
- 100
f
N
+ 300
MHz
MHz
MHz
MHz
MHz
MHz
-
-
-
dB
dB
dB
μs
ns
dB
dB
°C
ppm/K2
max. 1
max. 3
min. 3
min. 40
dB
dB
dB
dB
MHz
MHz
MHz
MHz
MHz
45...60
70...80
60...70
0,630
40
max 60
ns
45...49
50...54
30
- 0,050
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
)2 x f
To
(MHz)
-20 °C ... + 75 °C
- 40 °C ... + 85 °C
-
max. + 10
dBm
*) f
To
is reference frequence
fc
at frequency inversion temperature (
T
o
)
Generated: Wadim P. Dunzow
Checked/Approved: Dr. Bert Wall
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