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參數資料
| 型號： | TFS323 |
| 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, 323 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 122K |
| 代理商： | TFS323 |
TFS 323.doc
VI TELEFILTER
Version 1.2
19.12.2002
Filter Specification
TFS 323
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.
Measurement condition
Ambient temperature
T
A
:
Input power level:
Terminating impedances at fc
*
):
23 °C
0 dBm
input: 310
// -4,6 pF
output: 330
// -4,5 pF
Characteristics
Remark:
Reference level for the relative attenuation
arel
of the
TFS 323
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
typ. value
tolerance / limit
Insertion loss
(reference level)
Nominal frequency
Centre frequency
at ambient temperature
Pass band
Amplitude ripple
within PB
ae
10
dB
max. 12
dB
fN
fc
-
323
MHz
-
323
MHz
PB
-
0,4 dB
fN
±
0,5 MHz
max.
0,8 dB
In band ripple
(in any 112,5 kHz increment within the PB)
Relative attenuation
0,1 dB
max.
0,5 dB p-p
arel
fN
......... fN ±
0,5
MHz
0,4 dB
max. 0,8 dB
fN ± 3
fN ± 20
Group delay
at
fN
MHz
MHz
......... fN ± 20
......... fN ± 40
MHz
MHz
35
45
dB
dB
min. 30 dB
min. 40 dB
425
ns
max. 500
ns
Group delay ripple
in PB
(in any 112,5 kHz increment within the PB)
Phase linearity
in PB
(in any 112,5 kHz increment within the PB)
Input power level
Operating temperature range
Storage temperature range
Turnover temperature
T
o
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.
**) This power level is only allowed for short term operation (10% of the life time), the max. input power for continuous operation is only
max.15dBm
***)
f(Hz) = TCf(ppm/K2) x (T-T
0
)2 x fTo(MHz)
generated:
checked / approved:
20
ns
max. 120
ns
0,5 deg p-p
max.
5
deg p-p
-
max. 23
dBm**)
-
-
- 40 °C ... + 70
- 40 °C ... + 100
°C
°C
21
- 0,04
°C
ppm / K
2
-
-
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