English
Language : 

TFS70R Datasheet, PDF (1/3 Pages) Vectron International, Inc – Filter Specification
tfs70R.doc
VI TELEFILTER
Filter Specification
Version 1.2
TFS 70 R
06.01.02
1/3
1. Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances in fc:
23 °C
0 dBm.
for input:
for output:
72,35 Ω  - 38,29 pF.
72,35 Ω  - 38,29 pF.
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 70R 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 frequence fc is the arithmetic mean value of the upper and lower frequencies at
the 40 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
Insertion loss (Reference level) ae
Reference frequency fc at ambient temperature (fCAT)
Pass band ( PB ) :
Bandwidth at ambient temperature:
1,0 dB - band width
3,0 dB - band width
20 dB - band width
40 dB - band width
45 dB - band width
50 dB - band width
Amplitude ripple in pass band (p-p) :
Relative attenuation
arel
fc
...
fc ± 7,1 MHz ...
fc ± 7,7 MHz ...
fc ± 8,3 MHz ...
fc - 65 MHz ...
fc + 35 MHz ...
fc + 40 MHz ...
fc + 50 MHz ...
Average group delay in PB :
fc ± 7,1
fc ± 7,3
fc ± 8,3
fc ± 35
fc - 35
fc + 40
fc + 50
fc + 65
Group delay ripple in PB (p-p) :
Deviation from linear phase in PB :
MHz
MHz
MHz
MHz
MHz
MHz *)
MHz
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
typ. value
24 dB
70 MHz
tolerance / limit
max 25
70 ± 0,1
dB
MHz
fC - 7,1 MHz ... fC + 7,1 MHz
14,52
14,70
15,17
15,37
15,40
15,42
0,7
MHz
MHz
MHz
MHz
MHz
MHz
dB
min. 14,2
min. 14,6
max. 15,4
MHz
MHz
MHz
max 1 dB
0,7 dB
-
45 dB
50...55 dB
75...60 dB
56...60 dB
60...65 dB
56...60 dB
3,70 µs
max. 1
max. 3
min. 40
min. 45
min. 55
min. 50...55
min. 55
min. 52
max 4,2
135 ns
7,6° p-p...(2° r.m.s.)
max 200
56 dB
57...63 dB
-87 ppm/K
-94
∆fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
- 25 °C ... + 85 °C
- 25 °C ... + 85 °C
dB
dB
dB
dB
dB
dB
dB
dB
µs
ns
ppm/K
*) in this frequency range the limit line is of type SLOPING LINE
Generated:
Checked/Approved:
Wadim P. Dunzow
Dr. Bert Wall
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
E-Mail: tft@telefilter.com
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: vti@vtinh.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.