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參數(shù)資料
| 型號(hào)： | TFS300C |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類(lèi)： | 聲表面波濾波器 |
| 英文描述： | Filter specification |
| 中文描述： | 1 FUNCTIONS, 300 MHz, SAW FILTER |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 177K |
| 代理商： | TFS300C |
Tfs300C.doc
VI
TELEFILTER
1. Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances at fc *) :
2. Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 300C
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 on
300 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
TCf
in the operating temperature range and due to a production
tolerance for the centre frequency
fc
.
version 1.1
TFS 300 C
08.04.2002
Filter specification
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.
25
0
for input:
for output:
°C
dBm
176
- 6,19 pF.
775
- 3,52 pF.
Data
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae
17
dB
max. 20
dB
Nominal frequency
fN
fc
at ambient temperature
(f
CTA
)
-
300
MHz
Centre frequency
300,02
MHz
Pass band ( PB ) :
f
N
- 2,05 MHz ... f
N
+ 2,05 MHz
Amplitude ripple in PB (p-p) :
0,8 dB
max.
1
dB
Bandwidth :
1
3
dB
dB
4,55
5,25
MHz
MHz
min.
min.
4,1
5,0
MHz
MHz
20
40
3
dB
dB
dB
5,25
6,96
9,30
MHz
MHz
MHz
max.
max. 10
5,5
MHz
MHz
Relative attenuation
fN ± 2,05
fN ± 2,75
fN ± 5
fN - 25
fN + 7
fN ± 25
fN - 290
fN + 100
arel
max.
max.
dB
dB
fN ...... fN ±
MHz .... fN ±
MHz .... fN ±
MHz .... fN ±
MHz .... fN -
MHz .... fN +
MHz .... fN ±
MHz .... fN -
MHz .... fN +
2,05 MHz
2,5 MHz
-
-
1
3
5
7
7
MHz
MHz
MHz
MHz
MHz
MHz
MHz
-
dB
dB
dB
dB
dB
dB
min.
min.
min.
min.
min.
3
dB
dB
dB
dB
dB
43...45
49...54
49...54
55...70
40
45
43
50
25
100
100
700
90
90
Group delay ( mean value in PB ):
Group delay ripple (p-p) in :
Deviation from linear phase (p-p)
1,1 μs
60
2° (2,6°)
max.
max. 100
1,5
μs
ns
fN ... fN ± 2,2 MHz
fN ... fN ± 1,8 (2,5) MHz
ns
Triple transit attenuation compared to main signal
Crosstalk
Substrate material
Frequency inversion temperature ( T
o
)
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature: ** )
Operating temperature range
Storage temperature range
39 dB
60...65 dB
Quartz
30
-0,030
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
)2 x
f
To
(MHz)
°C
ppm/K2
- 20 °C ... + 70 °C
- 40 °C ... + 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.
**) f
O
= f
To
is reference frequence fc at frequency inversion temperature (T
o
)
Generated:
Dunzow W.
Checked / approved:
Dr. Bert Wall
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