TFS868_05 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 868.doc
VI TELEFILTER
Version 1.2
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
132 Ω || -2,2 pF
132 Ω || -2,2 pF
TFS 868
16.03.2005
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 868 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_N is fixed on 868,39 MHz without tolerance. The given values for the relative
attenuation arel have to be reached at the frequencies given below also if the centre frequency f_c 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.
Data
Insertion loss
(reference level)
ae ₌ amin
Nominal frequency
Centre frequency
Bandwidth
3 dB
3 dB
6 dB
6 dB
Relative attenuation
f_N
f_N
f_N
f_N - 390
f_N ± 390
… f_N -
… f_N +
… f_N ±
kHz … f_N +
kHz … f_N ±
f_N -
f_N -
f_N -
f_N -
f_N -
f_N +
f_N +
f_N +
f_N +
3,37
3,19
18,39
38,39
168,39
2,61
6,11
14,61
31,61
MHz … f_N -
MHz … f_N -
MHz … f_N -
MHz … f_N -
MHz … f_N -
MHz … f_N +
MHz … f_N +
MHz … f_N +
MHz … f_N +
Input power level
f_N
f_C
BW
390
210
390
310
490
18,39
18,39
38,39
168,39
858,39
6,11
14,61
31,61
131,61
arel
kHz
kHz
kHz
kHz
kHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
Operating temperature range
Storage temperature range
Frequency inversion temperature
Temperature coefficient of frequency
OTR
TCf ***
typ. value
3,4 dB
3,1 dB
868,39 MHz
1,2 MHz
1,2 MHz
1,4 MHz
1,4 MHz
0,8
0,8
0,8
0,8
1,6
33
33
59
54
52
39
45
33
48
-
-
-
5
-0,04
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
°C
ppm/K²
tolerance / limit
max.
max.
4,7 dB
4,2 dB **
868,39 MHz
min.
600 kHz
min.
780 kHz**
min.
800 kHz
min.
980 kHz**
max.
max.
max.
max.
max.
3 dB
3 dB
3 dB**
6 dB
6 dB**
min.
25 dB
min.
25 dB**
min.
32 dB
min.
35 dB
min.
50 dB
min.
11 dB
min.
22 dB
min.
30 dB
min.
35 dB
max.
0 dBm
- 45 °C ... + 90°C
- 45 °C ... + 90°C
*) 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.
**) at ambient temperature
***) ∆fc(Hz) = Tc_f(ppm/K²) x (To - T_A) ² x f_CAT (MHz)
Generated:
Checked / approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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