TFS420A1 Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

tfs 420A1.doc
VI TELEFILTER
Filter specification
Version 1.0
06.01.02
TFS 420 A1 - 1/4
1. Measurement condition
Ambient temperature TA:
Input power level:
23 °C
0 dBm
Typical terminating impedances in fN: for input:
for output:
210 Ω  -5,38 pF.
174 Ω  -3,99 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 420A1 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 nominal frequence fN is fixed at 420,0 MHz without tolerance or limit. The
reference frequence 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 temperature coefficient of frequency Tcf is valid both for the reference frequency fc and the frequency response of the
filter in the operating temperature range.
Data
Insertion loss (Reference level) ae
Nominal frequency
fN
Centre frequency fc at ambient temperature ( fCAT )
Pass band (-1dB)
Amplitude ripple (p-p): fN ... fN ± 4,1 MHz
Bandwidth at ambient temperature:
1 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
Relative attenuation arel
fN
fN ± 4,1 MHz
fN ± 5,5 MHz
fN ± 10
MHz
fN - 430 MHz
fN + 100 MHz
fN ± 4,1
fN ± 5,0
fN ± 10
fN ± 100
fN - 100
fN + 300
Average group delay in pass band:
Group delay ripple in pass band (p-p):
MHz
MHz
MHz
MHz
MHz
MHz
Triple transit attenuation compared to main signal:
Crosstalk
Frequency inversion temperature ( To )
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature T : *)
Operating temperature range
Storage temperature range
Input power level
typ. value
21,5 dB
-
420,03 MHz
0,4 dB
tolerance / limit
max 24 dB
420,0 MHz
-
fN - 4,1 MHz ... fN + 4,1 MHz
max 1,0 dB
9,14
10,50
14,23
15,91
MHz
MHz
MHz
MHz
-
-
-
45...60 dB
70...80 dB
60...70 dB
max. 1
max. 3
min. 3
min. 40
0,630 µs
40 ns
max 60
45...49 dB
50...54 dB
30 °C
- 0,050 ppm/K²
∆fc(Hz) = Tcf(ppm/K) x (T - To)² x fTo(MHz)
-20 °C ... + 75 °C
- 40 °C ... + 85 °C
-
max. + 10
dB
dB
dB
dB
ns
dBm
*) fTo is reference frequence fc at frequency inversion temperature (To )
Generated:
Checked/Approved:
Wadim P. Dunzow
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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