TFS44E Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

TFS 44E.doc
VI TELEFILTER
Filter specification
Version 1.1
TFS 44E
22.03.2002
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc :
23 °C
0 dBm.
for input: 50
for output: 50
0 pF.
0 pF.
2. Characteristics :
Remark:
Reference level for the relative attenuation arel of the TFS 44E is the minimum of the pass band attenuation amin. The minimum of the pass
band attenuation amin is defined as the insertion loss ae . The centre frequency fc is the arithmetic mean value of the upper and lower
frequencies at the 20 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 44 MHz without tolerance.
The temperature coefficient of frequency Tcf is valid both for the reference frequency fc and the frequency response of the filter. All specified
parameters have to be reached in the operating temperature range ( OTR ) .
Data
Insertion loss (Reference level) ae
typ. value
21
dB
tolerance / limit
max. 24 dB
Nominal frequency : fN at temperature TO = 30°C
44,000 MHz
44 MHz
Centre frequency fc at ambient temperature TA (fCAT)
44,019 MHz
Pass band ( PB ) at OTR : 0°C ... 60°C :
Amplitude ripple in PB (p-p) :
0,2 dB
fN - 2,48 MHz ... fN + 2,48 MHz
max. 0,4 dB
Bandwidth
0,4 dB
1 dB
3 dB
at ambient temperature TA (fCAT) :
5,70 MHz
6,03 MHz
6,51 MHz
min. 5,16 MHz
min. 6,20 MHz
10 dB
20 dB
30 dB
40 dB
Bandwidth
at OTR : 0°C ... 60°C :
7,22
7,72
8,02
8,21
MHz
MHz
MHz
MHz
max. 8,30 MHz
0,4 dB - band width
3 dB - band width
5,50 MHz
6,31 MHz
min. 4,96 MHz
min. 6,00 MHz
30 dB - band width
Relative attenuation
arel at OTR : 0°C ... 60°C
fN ..... fN ± 2,48 MHz
fN ± 2,48 MHz ... fN ± 3,0 MHz
fN ± 4,25 MHz ... fN ± 5
fN ± 5
MHz ... fN ± 26
MHz
MHz
Group delay ( mean value in PB ):
Group delay ripple in PB (p-p):
Phase ripple in PB (p-p):
8,22 MHz
0,25 dB
2,5 dB
45
dB
45...55
dB
1,50 µs
35
ns
2°
max. 8,50 MHz
max. 0,4 dB
max. 3,0 dB
min. 30
dB
min. 40
dB
max. 90
ns
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature
Operating temperature ( OTR ) :
Storage temperature range
-75 ppm/K
fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
0°C ... + 60 °C
- 25 °C ... + 85 °C
Generated:
Checked/Approved:
Dunzow W.
Dr. Bert Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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