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參數(shù)資料
| 型號(hào)： | TFS374D |
| 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, 374 MHz, SAW FILTER |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 74K |
| 代理商： | TFS374D |
File name: Tfs374d.doc
VI
TELEFILTER
version 1.2
TFS 374D
08.10.2003
Filter specification
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances *)
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS374D is the minimum of the pass band attenuation amin. This value 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 given values for the relative attenuation arel and 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.
23
°
C
5
dBm
for input:
for output:
277
|| -3.5 pF
177
|| -4.9 pF
D a t a
typ. value
tolerance/limit
Insertion loss
(Reference level)
ae
8,7
dB
max. 10
dB
Nominal frequency
f
N
f
C
-
374,000 MHz
Centre frequency
374,000 MHz
-
3 dB bandwidth
BW
23
MHz
min.
17
MHz
Relative attenuation
f
N
f
N
±
7
f
N
- 100
f
N
- 33
f
N
- 22
f
N
+ 16,5 MHz ... f
N
+
f
N
+ 22
MHz ... f
N
+
f
N
+ 43
MHz ... f
N
+ 100
arel
7
8,5 MHz
MHz ... f
N
±
MHz ... f
N
-
MHz ... f
N
-
MHz ... f
N
-
... f
N
±
MHz
0,8
-
dB
max.
max.
1
3
dB
dB
33
22
16,5 MHz
22
43
MHz
MHz
54
53
40
44
48
49
dB
dB
dB
dB
dB
dB
min.
min.
min.
min.
min.
min.
45
40
30
30
35
40
dB
dB
dB
dB
dB
dB
MHz
MHz
MHz
Group delay ripple
in f
N
± 7
MHz
40
ns
max. 100
ns
Triple transit suppression
40
dB
min.
30
dB
Operating temperature range
-
- 10 °C ... + 85 °C
Storage temperature range
-
- 40 °C ... + 85 °C
Temperature coefficient of frequency
TCf
**)
-87
ppm/K
-
Input power level
-
max.
10
dBm
*)
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/K) x (T-T
0
) x fTo(MHz)
Generated:
Checked / approved:
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.
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| TFS380C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VI TELEFILTER Filter specification |
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