Filename: tfs 746.doc
Version 1.3
19.07.2006
VI
TELEFILTER
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
Input:
Output:
23
0
50
50
°C
dBm
Ω
Ω
Filter specification
TFS 746
1/5
Characteristics
Remark:
The maximum attenuation in the pass band is defined as the insertion loss ae. The nominal frequency
f
N
is fixed at 746 MHz without any tolerance or limit.
The values of absolute attenuation aabs are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating
temperature range is included in the production tolerance scheme.
Data
Insertion loss within PB
Nominal frequency
Passband
Absolute attenuation
f
N
±
f
N
+
80
149
1
200
MHz ...
MHz ...
MHz …
MHz … f
N
-
f
N
±
f
N
+
149
300
200
149
ae
f
N
PB
aabs
MHz
MHz
MHz
MHz
p-p
*
typ. Value
2,4
-
-
dB
tolerance / limit
max.
3,0
746
24
dB
MHz
MHz
57
58
59
71
27
-
-
dB
dB
dB
dB
ns
min.
min.
min.
min.
max.
min.
max.
33,5
48,5
50,0
55,0
0,2
35
10
dB
dB
dB
dB
µs
dBm
dBm
Group delay ripple within PB
IIP3
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
OTR
-
-
- 10 °C ... + 75 °C
- 40 °C ... + 85 °C
ppm/K
-
TCf **
- 42
*) f
in1
= f
C
- 14 MHz; f
in2
= f
C
– 14,4 MHz; P
in
=0 dBm; f
measurement1
= f
C
- 13,6 MHz; f
measurement2
= f
C
- 14,8 MHz. The centre frequency 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.
**)
∆
f(Hz) =TC
f
(ppm/K) x(T-T
0
) x f
To
(MHz)
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30
E-Mail:
tft@telefilter.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 ]
