TFS87C Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter Specification

TFS 87c.doc
VI TELEFILTER
Filter Specification
Version 1.1
TFS 87C
03.01.2003
1/5
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc *):
23 °C
0 dBm
input: 1840
output: 2170
// -10,1 pF
// - 9,8 pF
Characteristics
Remark: Reference level for the relative attenuation arel of the TFS 87C 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
13,5 dB
max. 16,5 dB
Nominal frequency
fN
Centre frequency at ambient temperature fc
-
87,2 MHz
87,2 MHz
-
Pass band
PB
Amplitude ripple within PB
In band ripple
(in any 112,5 kHz increment within the PB)
-
0,4 dB
0,15 dB
fN
max.
max.
0,5 MHz
0,8 dB
0,5 dB p-p
Relative attenuation
fN
......... fN ± 0,5
fN ± 1 MHz ......... fN ± 1,5
fN ± 1,5 MHz ......... fN ± 3
DC
......... fN - 3
fN + 3 MHz ......... fN + 1,5
arel
MHz
MHz
MHz
MHz
GHz
0,4 dB
44 dB
48 dB
60 dB
60 dB
max. 0,8 dB
min. 39 dB
min. 40 dB
min. 50 dB
min. 50 dB
Group delay at fN
Group delay ripple in PB
(in any 112,5 kHz increment within the PB)
2,4 µs
80 ns
max. 3 µs
max. 120 ns
Phase linearity in PB
(in any 112,5 kHz increment within the PB)
1,5 deg
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
20
°C
-
Temperature coefficient of frequency TCf***
- 0,036 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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