
TFS36F.doc
TELEFILTER
VI
Description
IF filter for digital cable TV
Measurement condition
Ambient temperature T
A
:
Input power level:
Terminating impedance: source: 50
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
Insertion loss
(reference level)
Nominal frequency
fN
version 1.2
07.02.2003
Filter Specification
TFS 36 F
1/5
TELEFILTER 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.
25
°
C
0 dBm
load:
2 k
II 3 pF
typ. Value
Limit
19,6
MHz
20,3 ±
1,5
dB
-
36,125 MHz
Centre frequency
Bandwidth
fc
at ambient temperature T
A
-
36,125 MHz ± 0,055 MHz
1 dB
7,5
MHz
-
3 dB
7,9
MHz
-
Group delay ripple
Relative attenuation
30 dB
9,3
MHz
-
p-p in
fc
± 3,75 MHz
40
ns
-
arel
32,32
39,93
32,13
40,13
31,25
47,25
MHz
MHz
MHz
MHz
MHz
MHz
1,6
1,2
3,8
3,4
41
47
dB
dB
dB
dB
dB
dB
1,1
3,1
3,2
min.
min.
±
±
±
-
1
1,2
1,2
35
42
dB
dB
dB
dB
dB
dB
dB
lower side lobe 25,00 ... 29,50 MHz
29,50 ... 31,25 MHz
42
39
dB
dB
min.
min.
36
32
upper side lobe 40,90 ... 43,50
Reflected wave signal suppression
1,2 μs...6,0 μs after main pulse
Feedthrough signal suppression
Operable temperature range
MHz
35
41
dB
dB
min.
min.
32
36
dB
dB
43,50 ... 50,00 MHz
55
dB
min.
42
dB
53
dB
min.
50
dB
-
-25 ...
65
° C
Storage temperature range
-
- 0,072 ppm / K
-40 ...
85
° C
Temperature coefficient of frequency
TC
f
*
*)
fc(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
CAT
(MHz)
generated:
checked / approved:
-