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TFS434D Filter specification
型号:   TFS434D
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描述:   Filter specification
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Filename: tfs 434d.doc
Version 1.2
24.04.2006
VI
TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
0
°C
dBm
Filter specification
TFS 434D
1/5
240
|| -2,5 pF
240
|| -2,5 pF
Characteristics
Remark:
The nominal frequency fN is fixed at 434,42 MHz. The insertion loss ae is defined as loss value determined at fN. Reference level for the relative
attenuation arel of the TFS 434D is 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. All specified data are met within the operating temperature range.
Data
Insertion loss
(reference level)
Nominal frequency
Centre frequency 3dB
Passband
Relative attenuation
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
-
-
-
-
-
-
-
-
+
+
+
+
+
0,16
0,18
0,22
423,92
19,92
10,42
2,20
1,80
1,00
8,08
66,08
266,08
371,08
MHz … f
N
MHz … f
N
MHz … f
N
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
f
N
+
+
+
-
-
-
-
-
+
+
+
+
+
0,16
0,18
0,22
19,92
10,42
2,20
1,80
0,82
8,08
66,08
266,08
371,08
566,08
ae = amin
typ. value
1,8
-
434,46
-
MHz
dB
tolerance / limit
max.
3,0
434,42
-
f
N
±
0,16
MHz
dB
MHz
f
N
f
C
PB
arel
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
0,7
1,2
3,1
55,6
53,6
49,5
54,7
17,8
35,4
43,2
62,3
51,6
65,5
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
max.
max.
max.
min.
min.
min.
min.
min.
min.
min.
min.
min.
min.
max.
max.
2
3
6
52
48
29
26
15
18
40
50
45
60
10
6
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
V
Input power level
Permissible DV voltage
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
TCf **
V
DC
OTR
-
-
-
-0,03
ppm/K
2
- 40 °C ... + 95°C
- 45 °C ... + 120°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/K
2
) x (T-T
0
)
2
x fcat(MHz).
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 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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