TFS120A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs120a.doc
VI TELEFILTER
Version 1.2
Filter specification
TFS120A
04.09.2003
1/5
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
1180 || -7,1 pF
1110 || -7,9 pF
2. Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 120A is the insertion loss. The insertion loss ae is defined as the insertion loss at the nominal
frequency fN . 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 on the
operating temperature.
Data
typ. value
tolerance / limit
Insertion loss
(reference level)
ae
5,6 dB
-
max.
10,5 dB
-
Nominal frequency
Centre frequency
fN
-
fC
120
MHz
120
MHz
-
Passband
Pass band ripple
-
0,6 dB
fN
± 100 kHz
1
dB
Relative attenuation
fN
fN ±
fN ±
... fN ±
0,6 MHz ... fN ±
1,0 MHz ... fN ±
100
1,0
25,0
arel
kHz
MHz
MHz
0,6 dB
35
dB
50
dB
max.
min.
min.
1
dB
32,5 dB
37,5 dB
Group delay
Group delay ripple within PB
at fN
1,8 µs
60
ns
max.
max.
3,5 µs
300
ns
Operating temperature range
OTR
-
- 20 °C ... + 85 °C
Storage temperature range
-
- 20 °C ... + 85 °C
Frequency inversion temperature
35
°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.
**) f(Hz) = TCf(ppm/K) x (T-T0)² x fTo(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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