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參數資料
| 型號： | TFS70AC |
| 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 |
| 封裝： | ROHS COMPLIANT PACKAGE-12 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 129K |
| 代理商： | TFS70AC |
TFS 70AC.doc
VI TELEFILTER
Version 1.2
24.11.2003
Filter Specification
TFS 70AC
1/5
TELEFILTER 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.
Measurement condition
Ambient temperature
T
A
:
Input power level:
Terminating impedances at fc
*
):
Input:
Output:
Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 70AC
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 temperature coefficient of frequency Tc
f
is valid for both the
reference frequency fc and the frequency response of the filter in the operating temperature range
.
Data
25 °C
0 dBm
484
|| -22,0 pF
127
|| -33,4 pF
typ. value
tolerance / limit
Insertion loss
(reference level)
Centre frequency
at ambient temperature
Pass band
Amplitude ripple
within PB
ae
7,5
dB
max.
9,5
dB
fc
70
MHz
70,0 ± 0,1
MHz
PB
fc ± 3,6
0.3
MHz
dB
fc ± 2,8
max.
MHz
dB
1
Relative attenuation
arel
fc
fc ± 3,1
MHz ......... fc ±
......... fc ±
3,1
3,5
MHz
MHz
0,5
2
dB
dB
max. 1
max. 3
dB
dB
fc ± 5,975 MHz ......... fc ± 20
MHz
50
dB
min. 40
dB
Group delay
at
fc
1,21
μs
Group delay ripple
in PB
68
ns
max. 120
ns
Phase linearity
in fc ± 2,45 MHz
Operating temperature range
4
deg p-p
max.8
deg p-p
-
- 30 °C ... + 80
°C
Storage temperature range
-
ppm / K
- 40 °C ... + 85
°C
Temperature coefficient of frequency
TC
f
**
*) 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
A
) x
f
N
(MHz)
generated:
checked / approved:
- 94
-
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