TFS140AL Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – Filter specification

Filename: tfs 140al.doc
VI TELEFILTER
Version 1.4
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
212 Ω || -11,9 pF
1620 Ω || - 4,0 pF
TFS 140AL
15.07.2005
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 140AL 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 center frequence fc is the arithmetic mean value of the upper and lower frequencies at the 32
dB filter attenuation level relative to the insertion loss ae. The temperature coefficient of frequency Tc_f is valid both for the centre frequency fc and the
frequency response of the filter in the operating temperature range.
Data
typ. value
tolerance / limit
Insertion loss (Reference level)
ae
30
dB
max. 35
dB
Centre frequency at ambient temperature : fc
140,01 MHz
140,0 ± 0,05 MHz
Pass band at ambient temperature
PB
f_C ... f_C ± 4,48 MHz
Amplitude ripple in PB (p-p):
0,4 dB
max. 0,8 dB
Bandwidth at ambient temperature:
0,8 dB
2 dB
3 dB
32 dB
9,27
9,40
9,47
10,01
MHz
MHz
MHz
MHz
min.
min.
min.
max.
8,96
9,29
9,33
10,08
MHz
MHz
MHz
MHz
Relative attenuation
arel
f_C
... f_C ± 4,48 MHz
f_C ± 4,48 MHz ... f_C ± 4,64 MHz
f_C ± 4,64 MHz ... f_C ± 4,66 MHz
0,4 dB
1
dB
1,5 dB
max. 0,8 dB
max. 2
dB
max. 3
dB
f_C ± 5,04 MHz ... f_C ± 6,00 MHz
34
dB
min. 32
dB
f_C ± 6,00 MHz ... f_C ± 8,17 MHz
42
dB
min. 39
dB
In the frequency range fc ± 6,00 MHz ... fc ± 8,17 MHz the type of the LIMIT LINE is a SLOPING LINE (SL).
f_C ± 8,17 MHz ... f_C ± 14,5 MHz
48
dB
min. 45
dB
f_C ± 14,5 MHz ... f_C ± 100
MHz
55
dB
min. 50
dB
Group delay ( mean value in pass band ):
3,03 µs
max. 5,36 µs
Group delay ripple in pass band (p-p):
45
ns
max. 120
ns
Operating temperature range
-
- 25 °C ... + 75 °C
Storage temperature range
Temperature coefficient of frequency
Frequency inversion temperature
TC_f **)
T₀
-
- 0,04
10
ppm/K²
°C
- 40 °C ... + 85 °C
-
-
Input power level
-
max. +10
dBm
* ) The terminating impedances depends 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:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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