TFS300A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

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VI TELEFILTER
Filter Specification
TFS 300 A - 1/5
______________________________________________________________________________________________________
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances in fc:
Q-value of matching elements:
25 °C
0 dBm
for input:
for output:
50
215 Ω  -6,1 pF.
1190 Ω  -3,3 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 300A 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
3 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 300 MHz without tolerance. The given values for
the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also if the centre frequency fc is
shifted due to the temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre
frequency fc.
Data
typ. value
tolerance / limit
Insertion loss (Reference level) ae
Nominal frequency
Centre frequency
fN
fc at ambient temperature (fCTA)
16,3 dB
-
300,05 MHz
max. 20 dB
300 MHz
Pass band ( PB ) :
Amplitude ripple in PB (p-p) :
0,8 dB
f_N - 2,05 MHz ... f_N + 2,05 MHz
max. 1 dB
Bandwidth at operating temperature range:
1 dB - band width
3 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
4,55 MHz
5,25 MHz
5,25 MHz
6,96 MHz
9,30 MHz
min. 4,1 MHz
min. 5,0 MHz
max.5,5 MHz
max. 10 MHz
Relative attenuation
arel
fN ...... fN ± 2,05
fN ± 2,05 MHz .... fN ± 2,5
fN ± 2,75 MHz .... fN ± 5,0
fN ± 5 MHz .... fN ± 7
fN ± 7 MHz .... fN ± 25
fN ± 25 MHz .... fN ± 100
fN - 290 MHz .... fN - 100
fN + 100 MHz .... fN + 700
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
-
-
-
43...45 dB
49...54 dB
55...70 dB
90 dB
90 dB
max. 1 dB
max. 3 dB
min. 3 dB
min. 40 dB
min. 47 dB
min. 50 dB
Group delay ( mean value in PB ):
Group delay ripple (p-p) in :
fN ... fN ± 2,2 MHz
Deviation from linear phase (p-p) fN ... fN ± 1,8 (2,5) MHz
1,1 µs
70 ns
2° (2,6°)
1,5 µs
max.100 ns
Triple transit attenuation compared to main signal
Crosstalk
Substrate material
Frequency inversion temperature ( To )
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature: * )
39 dB
60...65 dB
Quartz
-20°
-0,0297 ppm/K²
∆fc(Hz) = Tcf(ppm/K) x (T - To)² x fTo (MHz)
Operating temperature range
Storage temperature range
- 20 °C ... + 70 °C
- 40 °C ... + 85 °C
*) fTo is reference frequency fc at frequency inversion temperature (To )
Generated:
Dunzow W.
Checked/Approved:
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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