TFS70U Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Tfs70U.doc
VI TELEFILTER
Filter Specification
Version 2.0
14.02.2001
TFS 70U - 1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances in fc:
23 °C.
0 dBm.
for input:
for output:
50 Ω  0 pF.
50 Ω  0 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFD 70U 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 reference 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 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. The frequency shift of the filter in the operating temperature
range is not included in the production tolerance scheme.
Data
typ. value
tolerance / limit
Insertion loss (Reference level) ae
Centre frequency fc at ambient temperature (fCTA)
Pass band ( PB ) :
Amplitude ripple in PB (p-p):
Bandwidth : at ambient temperature TA
1 dB - band width
3 dB - band width
20 dB - band width
40 dB - band width
Relative attenuation
arel
fc
...... fc ± 5,6 MHz
fc ± 5,6 MHz ... fc ± 6,5 MHz
fc ± 11
fc - 70
fc + 30
MHz ... fc ± 30
MHz ... fc - 30
MHz ... fc + 70
MHz
MHz
MHz
Group delay ( mean value in PB ):
Group delay ripple in :
Deviation from linear phase in :
fc ... fc ± 7,5 MHz
fc ... fc ± 7,5 MHz
Triple transit attenuation compared to main signal
Crosstalk
Temperature coefficient of frequency ( Tcf ) :
Frequency deviation of fc over temperature :
Operating temperature range
Storage temperature range
20,5 dB
70
MHz
0,3 dB
max. 22 dB
70 ± 0,15 MHz
fc ... fc ± 5,6 MHz
max. 1 dB
11,96
13,67
18,00
20,15
MHz
MHz
MHz
MHz
min. 11,2 MHz
min. 13,0 MHz
max. 22 MHz
-
-
47...55 dB
47...55 dB
37...39 dB
max. 1 dB
max. 3 dB
min. 40 dB
min. 40 dB
min. 35 dB
0,720 µs
20
ns
2,5° (r.m.s. 0,6 °)
max. 1 µs
max. 30 ns
50...52 dB
60...70 dB
- 72
ppm/K
∆fc(Hz) = Tcf(ppm/K) x (T - TA) x fCTA (MHz)
- 25 °C ... + 80 °C
- 40 °C ... + 85 °C
Generated:
Checked/Approved:
Wadim Dunzow
Dr. Bert Wall
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: [phone] / Fax: [phone]
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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