TFS323 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

TFS 323.doc
Version 1.2
19.12.2002
VI TELEFILTER
Filter Specification
TFS 323
1/5
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc *):
23 °C
0 dBm
input: 310
output: 330
// -4,6 pF
// -4,5 pF
Characteristics
Remark: Reference level for the relative attenuation arel of the TFS 323 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 temperature coefficient of frequency Tcf is valid for both the
reference frequency fc and the frequency response of the filter in the operating temperature range.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
ae
10 dB
max. 12 dB
Nominal frequency
fN
Centre frequency at ambient temperature fc
-
323 MHz
323 MHz
-
Pass band
PB
Amplitude ripple within PB
In band ripple
(in any 112,5 kHz increment within the PB)
-
0,4 dB
0,1 dB
fN
max.
max.
0,5 MHz
0,8 dB
0,5 dB p-p
Relative attenuation
fN
......... fN ± 0,5
fN ± 3
fN ± 20
MHz ......... fN ± 20
MHz ......... fN ± 40
arel
MHz
MHz
MHz
0,4 dB
35 dB
45 dB
max. 0,8 dB
min. 30 dB
min. 40 dB
Group delay at fN
Group delay ripple in PB
(in any 112,5 kHz increment within the PB)
425 ns
20 ns
max. 500 ns
max. 120 ns
Phase linearity in PB
(in any 112,5 kHz increment within the PB)
0,5 deg p-p
max. 5 deg p-p
Input power level
-
max. 23 dBm**)
Operating temperature range
-
- 40 °C ... + 70 °C
Storage temperature range
-
- 40 °C ... + 100 °C
Turnover temperature To
21
°C
-
Temperature coefficient of frequency TCf***
- 0,04 ppm / K²
-
*) 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.
**) This power level is only allowed for short term operation (10% of the life time), the max. input power for continuous operation is only
max.15dBm
***) f(Hz) = TCf(ppm/K²) x (T-T0)² x fTo(MHz)
generated:
checked / approved:
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