
TFS433P.doc
VI TELEFILTER
Version 1.1
05.03.2003
Filter Specification
TFS 433P
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedances*:
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 433P 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 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. The nominal frequency f
is fixed at 433,92 MHz without tolerance. The given
values for the relative attenuation arel have to be reached at the frequencies given below even if the centre frequency f
is shifted due to the
temperature coefficient of frequency TCf in the operating temperature range and due to a production tolerance for the centre frequency f
c
.
D a t a
typ. value
Insertion loss
ae = amin
(Reference level)
23
°
C
0 dBm
input: 190
// -3,40 pF
output: 190
// -3,40 pF
Variation/ Limitation
max
2,60
dB
3,5
dB
Nominal frequency
f
N
-
433,92
MHz
Centre frequency
f
c
433,92
MHz
2 dB bandwidth
700,0
kHz
min 400
kHz
3 dB bandwidth
800,0
kHz
min 440
kHz
6 dB bandwidth
955,0
kHz
min 560
kHz
Relative attenuation
f
N
.... f
± 200 kHz
f
N
± 200,0
f
N
± 220,0
f
N
– 1,0 MHz .... f
– 5,92
f
N
– 5,92
f
N
– 19,92
f
N
+ 1,0
f
N
+ 116,08
arel
-
-
-
max
max
max
15,0
min
min
min
min
2,0
3,0
6,0
dB
40,0
45,0
10,0
45,0
dB
dB
dB
kHz .... f
N
± 220,0
kHz .... f
± 280,0
kHz
kHz
MHz 16,5
dB
42,0
55,0
14,0
60,0
min
dB
dB
dB
dB
MHz .... f
N
– 19,92 MHz
MHz .... f
N
– 423,92 MHz
MHz .... f
N
+ 8,0
MHz .... f
N
+ 566,0
dB
dB
dB
dB
MHz
MHz
Temperature coefficient of the frequency
TC
f
**)
-0,040
ppm/K
2
Frequency inversion temperature
To
)
10
°C
Operating temperature range
- 25 °C ... + 80 °C
Storage temperature range
- 45 °C ... + 120 °C
Input power level
max 10,0
dBm
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as
reference values only. Should there be additional questions do not hesitate to ask for an application note or contact our design team.
**)
fc(Hz) = Tc
f
(ppm/K2) x (To - T
A
) 2 x f
CAT
(MHz)
Generated
:
Checked / approved :
TELEFILTER GmbH
Potsdamer Strae 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
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