TFS211D Datasheet, PDF (1/5 Pages) Vectron International, Inc – Prelimenary Specification

TFS 211D.doc
VI TELEFILTER
version 1.2
Prelimenary Specification
TFS 211D
10.12.2003
1/5
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances at fc *:
23 °C
0 dBm
input: 740
output: 280
// -7,7 pF (prelimenary value)
// -8,8 pF (prelimenary value)
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS211D is the minimum of the pass band attenuation amin. This value 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 given values for the relative attenuation arel and 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
ae
(reference level)
4,8 dB
max.
6,5 dB
Nominal frequency
fN
Centre frequency
fc
(at ambient temperature)
-
211
MHz
211 MHz
± 25 kHz
Relative attenuation
arel
fc
......... fc ± 50 kHz
fc ± 50 kHz ......... fc ± 80 kHz
fc ± 80 kHz ......... fc ± 100 kHz
fc ± 0,2 MHz ......... fc ± 0,4 MHz
fc ± 0,4 MHz ......... fc ± 0,6 MHz
fc ± 0,6 MHz
fc ± 0,6 MHz ......... fc ± 0,8 MHz
fc ± 0,8 MHz ......... fc ± 20 MHz
Group delay ripple within fc ± 100 kHz
Absolute group delay within fc ± 100 kHz
Temperature coefficient of frequency ( Tcf )**
Frequency inversion temperature T0
Operating temperature range
Storage temperature range
0,75 dB
1,3 dB
2,2 dB
5
dB
28
dB
42
dB
42
dB
49
dB
250
ns
2,5 µs
- 0,036 ppm/K²
27
°C
-
-
max.
max.
max.
min.
min.
min.
min.
min.
1,5 dB
2 dB
3 dB
3 dB
25 dB
40 dB
38 dB
46 dB
max. 500 ns
max.
5 µs
-
-
0 °C .... + 85 °C
- 40 °C .... + 85 C
VSWR
within fc ± 100 kHz
16
dB
min. 10 dB
Input power
DC voltage between any two terminals
-
max. 10 dBm
-
± 30 V
Out of band intermodulation
input signals: 10 dBm at 211,8 MHz and 212,6 MHz
input signals: 10 dBm at 210,2 MHz and 209,4 MHz
65 dBm
60 dBm
(preliminary limit value)
*) 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.
***) f(Hz) = TCf(ppm/K²) x (T-T0)² x fTo(MHz)
generated:
checked / approved:
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
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