TFS133A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Tfs133A.doc
VI TELEFILTER
Filter specification
Version 1.2
TFS 133A
06.03.2003
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc * ) :
25 °C
0 dBm.
for input:
for output:
t.b.m.
t.b.m.
t.b.m. pF.
t.b.m. pF.
2. Characteristics :
Remark: The reference level for the relative attenuation arel of TFS 133A is the minimum of the pass band attenuation amin. This minimum is
defined as the insertion loss ae. The nominal frequency fN is fixed at 133 MHz without any tolerance. . 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 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
Insertion loss (reference level )
ae = amin
typ. value
5...6
dB *** )
limit / tolerance
max. 7 ***) dB
Nominal frequency
fN
Centre frequency at TA = 23°C :
fCTA
Centre frequency at TA = 37°C :
fc
Pass band
PB
Amplitude ripple within PB ( p-p )
Bandwidth at ambient temperature TA = 23°C :
0,4 dB
1 dB
3 dB
5 dB
10 dB
20 dB
-
133,04
133,00
MHz
MHz
-
0,2 dB
850...950
kHz
1220...1290
kHz
1810...1840
kHz
2190
kHz
2680
kHz
3250
kHz
133
MHz
fN ± 0,2
max. 0,4
MHz
dB
min. 630
kHz
max.3370
kHz
Relative attenuation
fN
fN ±
arel
0,2 MHz
fN ± 1,8 MHz ... fN ± 6
fN ± 6 MHz ... fN ± 39
fN - 132 MHz ... fN - 39
fN + 39 MHz ... fN + 887
MHz
MHz
MHz
MHz
-
24...28
dB
37...45
dB
60
dB
60...70
dB
max. 0,4 dB
min. 20
dB
min. 35
dB
min. 20
dB
min. 20
dB
Return loss in PB :
S11 / S22
12...15
dB
min. 10
dB
Group delay mean value
Group delay variation
within fN
within fN
50 kHz
50 kHz
0,630 µs
20
ns
max. 1
µs
max. 100
ns
Input power lewel
-
max. 10
dBm
Temperature coefficient of frequency TCf ** )
Operating temperature range
Storage temperature range
- 20
ppm / K
-
-
-
- 5 ... + 80 °C
-40 ... + 85 °C
*) 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) x fTA(MHz)
***) matching components: for inductance, a Q-value of about 30 is to use
generated:
checked / approved:
Dunzow W.
Dr. Wall
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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