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參數資料
| 型號： | TFS70Y |
| 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, 70.002 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 123K |
| 代理商： | TFS70Y |
tfs70y.doc
VI
TELEFILTER
1. Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances in fc * ) :
2. Characteristics :
Remark:
Reference level for the relative attenuation arel of the TFS70Y 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
Insertion Loss
ae
(Reference Level)
Version 3.0
06.06.2003
Filter Specification
TFS 70 Y
1/5
Tele Filter GmbH
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.
23
0
2,9 kOhm
║
-3,8 pF
2,9 kOhm
║
-3,8 pF
820 nH
°C.
dBm.
for input:
for output:
External coil:
typ. value
Variation / Limitation
3,7
dB
max 6,0
dB
Centre frequency
(at ambient temperature T
A
)
Relative Attenuation
f
N
- 35
kHz ... f
N
+ 35
f
N
± 35
kHz ... f
N
± 47
fc
70,002 MHz
70,0 ± 0,015 MHz
arel
kHz
kHz
0,5 dB
2
max.
max.
1
3
dB
dB
dB
f
N
± 60
f
N
± 90
f
N
± 450
f
N
± 500
kHz ... f
N
± 90
kHz ... f
N
± 450
kHz ... f
N
± 500
kHz ... f
N
± 10
kHz
kHz
kHz
MHz
2,5 dB
10
45
43
min.
min.
min. 35
min.
1
3
dB
dB
dB
dB
dB
dB
dB
40
Temperature Coefficient
Tc
f
2nd order **)
- 0,043 ppm/K
-
Turn over temperature
T
0
25
°C
-
Operating Temperature Range
-
- 5 °C ... + 70 °C
Storage Temperature Range
-
- 30 °C ... + 90 °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) = Tc
f
(ppm/K) x (T - T
o
)2 x
f
To
(MHz)
generated:
checked / approved:
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