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參數資料
| 型號： | TFS57 |
| 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, 57.6 MHz, SAW FILTER |
| 文件頁數： | 1/5頁 |
| 文件大小： | 169K |
| 代理商： | TFS57 |
Filename: tfs57.doc
VI
TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *)
Input:
Output:
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 57 is the maximum of the pass band attenuation amax. The maximum of the pass band
attenuation amax is defined as the insertion loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 1,5 dB
filter attenuation level relative to the insertion loss ae. The nominal frequency f
is fixed at 57.6 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 also 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.
Version 2.2
18.09.2003
Filter specification
TFS57
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
°C
dBm
260
|| -19,5 pF
260
|| -19,5 pF
D a t a
typ. value
tolerance / limit
Insertion loss
(reference level)
ae
13,5
-
max.
15
dB
-
Nominal frequency
f
N
-
57,6
MHz
Centre frequency
f
C
57,6
MHz
Pass band
f
N
–
10,6
MHz ... f
N
+
10,6
MHz
Pass band ripple
0,7
dB
max.
1,5
dB
Relative attenuation
arel
f
N
–
10,6
MHz ... f
N
+
10,6
MHz
0,7
dB
max.
1,5
dB
f
N
f
N
f
N
–
+
+
56,6
27,8
192,4
MHz ... f
N
MHz ... f
N
MHz ... f
N
–
+
+
27,8
192,4
942,4
55
48
55
dB
dB
dB
min.
min.
min.
45
45
35
dB
dB
dB
Group delay ripple within PB
***)
100
ns
max.
110
ns
Intermodulation IP3
****)
-
min.
30
dBm
1 dB compression point
-
min.
12
dBm
Input power level
-
max.
13
dBm
Temperature coefficient of frequency
TCf **)
-72
ppm/K
Operating temperature range
OTR
-
- 25 °C ... + 85 °C
Storage temperature range
-
- 40 °C ... + 85°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
(ppm/K) x (T - T
) x f
(MHz).
***) to be fulfilled in any 5 MHz segment of the passband; measurement condistions are: 5MHz span, 1601 points, 10 x averaging
****
)
f
in1
= 56,0 MHz; f
in2
= 59,2 MHz; P
in
= 0 dBm f
measurement1
= 2* f
in1
- f
in2
=52,8 MHz; f
measurement2
= 2* f
in2
- f
in1
=62,4 MHz
Generated:
Checked / Approved:
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