tfs70R.doc
Version 1.2
06.01.02
VI TELEFILTER
Filter Specification
TFS 70 R
1/3
1. Measurement condition
Ambient temperature T
A
:
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
Tc
f
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
typ. value
24
70
dB
MHz
tolerance / limit
max 25
70 ± 0,1
dB
MHz
Reference frequency fc
at ambient temperature (f
CAT
)
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
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 :
Group delay ripple in PB (p-p) :
Deviation from linear phase in PB :
Triple transit attenuation compared to main signal
Crosstalk
Temperature coefficient of frequency ( Tc
f
)
Frequency deviation of fc over temperature
Operating temperature range
Storage temperature range
*) in this frequency range the limit line is of type SLOPING LINE
fc
fc
fc
fc
fc
fc
fc
fc
arel
±
±
±
±
-
+
+
+
7,1
7,3
8,3
35
35
40
50
65
MHz
MHz
MHz
MHz
MHz
MHz *)
MHz
MHz
f
C
- 7,1 MHz ... f
C
+ 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
45
50...55
75...60
56...60
60...65
56...60
3,70
135
dB
-
dB
dB
dB
dB
dB
dB
µs
ns
max. 1
max. 3
min. 40
min. 45
min. 55
min. 50...55
min. 55
min. 52
max 4,2
max 200
dB
dB
dB
dB
dB
dB
dB
dB
µs
ns
7,6° p-p...(2° r.m.s.)
56
57...63
-87
dB
dB
ppm/K
-94
ppm/K
∆f
c(Hz) = Tc
f
(ppm/K) x (T - T
A
) x f
CAT
(MHz)
- 25 °C ... + 85 °C
- 25 °C ... + 85 °C
Generated:
Wadim P. Dunzow
Checked/Approved:
Dr. Bert Wall
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail: tft@telefilter.com
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.
VECTRON [ Vectron International, Inc ]
