
tfs70H13.doc
VI TELEFILTER
Version 1.1
TFS 70H13
24.06.2002
1/5
Filter specification
1. Measurement condition :
Ambient temperature T
A
:
Input power level:
Terminating impedances in fc:
2. Characteristics :
Remark:
Reference level for the relative attenuation
arel
of the
TFS 70H13
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
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
25
0
for input:
for output:
°C.
dBm.
50
0 pF.
50
0 pF.
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae
fc
22,7
dB
max. 24
dB
Centre frequency
at ambient temperature
(f
CTA
)
70,0
MHz
70,0 ± 0,1
MHz
Pass band :
PB
fc ... fc ± 4,0
max.
MHz
Amplitude ripple in :
fc ... fc ± 3,6 MHz
0,45
dB
0,8
dB
Bandwidth
at ambient temperature T
A
:
BW
1
3
dB
dB
7,83
8,39
MHz
MHz
min.
min.
7,6
8,0
MHz
MHz
10
20
30
40
50
5
dB
dB
dB
dB
dB
dB
8,70
9,20
9,78
10,16
10,43
10,62
MHz
MHz
MHz
MHz
MHz
MHz
max. 10,6
MHz
Relative attenuation
arel
fc ± 3,6 MHz ... fc ±
fc ± 3,8 MHz ... fc ±
fc ± 5,3 MHz ... fc ±
fc ± 6
fc ± 15
fc ... fc ±
3,6 MHz
3,8 MHz
4,0 MHz
-
-
-
max.
max.
max.
0,8
1
3
dB
dB
dB
6
MHz
MHz
MHz
45
50
dB
dB
dB
min.
min.
min.
40
45
50
dB
dB
dB
MHz ... fc ± 15
MHz ... fc ± 50
55...60
Group delay ( mean value in PB ):
-
1,83
μs
max.
2,5
μs
Group delay ripple in PB (p-p):
40
ns
max. 60
ns
Deviation from linear phase in PB :
2,4
deg
max.
4
deg
Triple transit attenuation compared to main signal
54
dB
Crosstalk
60
dB
Temperature coefficient of frequency ( Tc
f
) :
-87
ppm/K
Frequency deviation of fc over temperature :
Operating temperature range
fc(Hz) = Tc
f
(ppm/K) x (T - T
o
) x f
CTA
(MHz)
- 25 °C ... + 80 °C
Storage temperature range
- 40 °C ... + 85 °C
Generated:
W. Dunzow
Checked / approved:
Dr. Bert Wall
VI TELEFILTER
Potsdamer Strae 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.com
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