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60
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TFS36F.doc
version 1.2
07.02.2003
VI
TELEFILTER
Filter Specification
TFS 36 F
1/5
as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Description
IF filter for digital cable TV
Measurement condition
Ambient temperature T
A
:
25 C
Input power level:
0 dBm
Terminating impedance: source: 50
load:
2 k II 3 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 36F is the insertion loss. The insertion loss ae is defined as the insertion loss at
the nominal frequency fN .
D a t a
typ. Value
Limit
Insertion loss
19,6
MHz
20,3 ?
1,5
dB
(reference level)
Nominal frequency
fN
-
36,125
MHz
Centre frequency
fc
at ambient temperature T
A
-
36,125 MHz ? ,055 MHz
Bandwidth
1 dB
7,5
MHz
-
3 dB
7,9
MHz
-
30 dB
9,3
MHz
-
Group delay ripple
p-p in
fc ? 3,75 MHz
40
ns
-
Relative attenuation
arel
32,32
MHz
1,6
dB
-
39,93
MHz
1,2
dB
1,1
?
1
dB
32,13
MHz
3,8
dB
3,1
?
1,2
dB
40,13
MHz
3,4
dB
3,2
?
1,2
dB
31,25
MHz
41
dB
min.
35
dB
47,25
MHz
47
dB
min.
42
dB
lower side lobe 25,00 ...29,50
MHz
42
dB
min.
36
dB
29,50 ...31,25
MHz
39
dB
min.
32
dB
upper side lobe 40,90 ...43,50
MHz
35
dB
min.
32
dB
43,50 ...50,00
MHz
41
dB
min.
36
dB
Reflected wave signal suppression
55
dB
min.
42
dB
1,2
...6,0
after main pulse
탎
탎
Feedthrough signal suppression
53
dB
min.
50
dB
Operable temperature range
-
-25 ...
65
? C
Storage temperature range
-
-40 ...
85
? C
Temperature coefficient of frequency
TC
f
*
- 0,072
ppm / K
-
*)
TFS36F
Содержание LC3701E
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