TFS140X Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs140X.doc
VI TELEFILTER
version 1.2
Filter specification
TFS 140X
24.11.2003
1/5
Measurement condition
Ambient temperature:
Input power level:
Source and load impedance:
Terminating impedances *
Input:
Output:
25
02
50
C
dBm
99 || - 28.3 pF
103 || - 27.2 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS140X 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 20 dB filter attenuation level
relative to the insertion loss ae. The frequency shift of the filter in the operating temperature range is not included in the production tolerance
scheme
Data
typ. value
limit
Insertion loss
ae = amin
Nominal frequency
fN
Centre frequency fc (at ambient temperature)
Pass band
PB
Amplitude ripple (peak to adjacent valley)
within fN 7,2 MHz
Bandwidth
1 dB
3 dB
35 dB
40 dB
9
dB
140
MHz
0.2
17,6
18,5
21,8
24,8
MHz
MHz
MHz
MHz
max.
12
140,0
139,60 ... 140,40
fN
7,1
dB
MHz
MHz
MHz
max.
1
dB
min.
min.
max.
max.
17
17,75
24
48
MHz
MHz
MHz
MHz
Relative attenuation
fN ...
fN
fN 8,5 MHz ... fN
arel
8,5 MHz
8,875 MHz
fN 12 MHz ... fN
24
fN 24 MHz ... fN
40
Phase variation within PB
MHz
MHz
0,5 dB
1,5 dB
40
dB
50
dB
6
deg
max.
1
max.
3
min.
35
min.
40
max.
10
dB
dB
dB
dB
deg p-p
Group delay ripple within PB
Absolute group delay within PB
44
ns
777
ns
max.
60
ns
max. 825
ns
Input power level
max. + 10
dBm
Operable temperature range
- 40 C ... + 85 C
Storage temperature range
- 40 C ... + 85 C
Temperature coefficient of frequency
TCf
-87
ppm/K
*) 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.
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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