TFS86C Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

Filename: tfs86c.doc
VI TELEFILTER
Measurement condition
Ambient temperature:
23°
Input power level:
0 dBm
Terminating impedance: *)
Input:
825 Ω II –1,75 pF
Output:
825 Ω II –1,75 pF
version 1.4
Filter Specification
TFS 86 C
21.01.2002
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 86 C 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 3dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 86,46 MHz without any tolerance. The given
values for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below even if the centre
frequency fc 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 fc.
Data
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae = amin
3,7 dB
max. 5
dB
Nominal frequency
fN
Centre frequency
fc
Pass band ripple
fN ± 13 kHz
Relative attenuation
arel
fN ± 14 kHz
fN - 1000 kHz ... fN - 880 kHz
fN - 880 kHz ... fN - 120 kHz
fN - 120 kHz ... fN - 60 kHz
fN + 60 kHz ... fN + 120 kHz
fN + 120 kHz ... fN + 1000 kHz
Group delay distortion GDD
fN ± 11 kHz
Intermodulation **)
-
86,463 MHz
0,7 dB
0,9 dB
64
dB
51 - 60 dB
24
dB
24
dB
45 - 60 dB
3,8 µs
-
86,46 MHz
-
max. 2,0 dB
max. 3
dB
min. 50
dB
min. 40
dB
min. 20
dB
min. 20
dB
min. 40
dB
max. 10
max. - 80
µs
dBm
Operating temperature range
- 20 °C ... + 70 °C
Storage temperature range
- 40 °C ... + 85 °C
Temperature coefficient of frequency ***) Tc_f
- 0,036 ppm/K²
Frequency inversion temperature T₀
25
°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.
**) Intermodulation in the composite signal by fN ± 60 kHz and fN ± 120 kHz each of -20 dBm
***) ∆fc(Hz) = Tc_f(ppm/K) x (T - T_o)² x f_To (MHz)
Generated:
Checked / approved:
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Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
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