TFS43A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Preliminary Specification

TFS43A.doc
VI TELEFILTER
Preliminary Specification
version 1.4
TFS 43 A
05.12.03
1/5
Description
IF filter for digital cable TV
Measurement condition
Ambient temperature TA: 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 43A is the insertion loss. The insertion loss ae is defined as the insertion loss at the nominal
frequency fN . 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.
Data
typ. Value
Limit
Insertion loss
(Reference Level)
15,2 dB
14,8 dB ± 1,5 dB
Nominal frequency fN
-
Centre frequency
fc at ambient temperature TA
-
43,75 MHz
43,75 MHz ± 0,07 MHz
Bandwidth
3 dB
30 dB
6,0 MHz
-
7,6 MHz
-
Group delay ripple p-p in fc ± 3 MHz
35
ns
-
Relative attenuation arel
@ 41,22
@ 46,28
@ 40,75
@ 46,75
@ 39,75
@ 47,75
fN - 8,75 MHz ... fN - 4,75
fN - 4,75 MHz ... fN - 4,00
fN + 4,00 MHz ... fN + 4,25
fN + 4,25 MHz ... fN + 5,00
fN + 5,00 MHz ... fN + 6,25
fN + 6,25 MHz ... fN + 11,25
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
0,4 dB
0,15 dB
3,0 dB
3,0 dB
44
dB
41,5 dB
46
dB
48
dB
38
dB
36,5 dB
46
dB
44
dB
-
0,2 ±
2,7 ±
1 dB
1,2 dB
2,7 ± 1,2 dB
min.
38 dB
min.
37 dB
min.
42 dB
min.
37 dB
min.
36 dB
min.
34 dB
min.
36 dB
min.
42 dB
Reflected wave signal suppression
1,2 µs...6,0 µs after main pulse
Feedthrough signal suppression
Operable temperature range
Storage temperature range
Temperature coefficient of frequency TCf*
DC voltage
VDC
AC voltage
Vpp
*) fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
58
dB
52
dB
-
-
-72
ppm / K
-
-
min.
42 dB
min.
50 dB
-25 °C ..... 65 °C
-40 °C ..... 85 °C
-
max.
max.
12 V
10 V
generated:
checked / approved:
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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