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參數資料
| 型號： | TFS70Z |
| 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 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 134K |
| 代理商： | TFS70Z |
Tfs70z.doc
VI
TELEFILTER
version 1.3
27.03.2003
Filter Specification
TFS 70 Z
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances at fc
*:
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 70Z 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 2 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 70 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 even 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.
D a t a
TELEFILTER GmbH
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
tft@telefilter.com
E-Mail:
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
°
C
dBm
input: 1,85 k
// -14,5 pF
output: 1,49 k
// -14,1 pF
typ. Value
Limit
Insertion loss
(reference level)
Nominal frequency
Pass band
Amplitude ripple in PB
Relative attenuation
fN
ae
5,2
dB
max. 8
dB
fN
-
70
MHz
PB
-
fN
±
0,15 MHz
p-p
-
max.
2
dB
arel
.......
fN ±
0,15
MHz
1
dB
max.
2 dB
fN ±
fN ±
Group delay ripple in PB
p-p
Temperature coefficient of frequency Tc
f
0,5 MHz ...... fN ±
1 MHz ...... fN ±
1
2
MHz
MHz
40
43
dB
dB
min.
min.
35 dB
40 dB
0,45 μs
max.
2
μs
-0,036 ppm/K
2
-
Operating temperature range
-
- 25 °C.. + 80
°C
Storage temperature range
-
- 40 °C.. + 85
°C
Turnover temperature
T
o
25
°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(Hz) = TCf(ppm/K2) x (T-T
0
)2 x fTo(MHz)
generated:
checked / approved:
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