TFS133 Datasheet, PDF (1/6 Pages) Vectron International, Inc – Filter Specification

File name: Tfs133.doc
VI TELEFILTER
Filter Specification
version 1.4
TFS 133
10.10.2001
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances in fc *) :
23 °C
0 dBm
for input:
for output:
1656 Ω ÷ê - 7,292 pF.
2084 Ω ÷ê - 6,964 pF.
2. Characteristics :
Remark: Reference level for the relative attenuation arel of the TFS 133 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 nominal frequency fN is fixed to 133.0 MHz. 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. All specified
parameters have to be reached in the operating temperature range ( OTR ) .
Data
Insertion loss (Reference level) ae
Nominal frequency
Centre frequency
Centre frequency
fN
fc in OTR
fc at ambient temperature TA = 23 °C
typ. value
7,2...8,2 * ) dB
-
-
133,007
MHz
tolerance / limit
max. 9
dB
133
133± 0,025
MHz
MHz
133,007± 0,018 MHz
Amplitude ripple in
Amplitude ripple in
fN ± 80 kHz (p-p):
fN ± 200 kHz (p-p):
-
max. 0,2
dB
-
max. 0,4
dB
Bandwidth in OTR :
0,2 dB - band width
0,4 dB - band width
350...400 kHz
500...580 kHz
min. 0,16
min. 0,40
MHz
MHz
20 dB - band width
2720 kHz
max. 3,6
MHz
Relative attenuation
arel
fN
..... ^{fN ±}
80
fN ± 80 kHz .... fN ± 200
fN ± 1,8
fN ± 6
fN - 132
fN + 39
MHz .... fN ± 6
MHz .... fN ± 39
MHz .... fN - 39
MHz .... fN + 887
kHz
kHz
MHz
MHz
MHz
MHz
0,1 dB
0,2 dB
35 dB
45 dB
70 dB
70...50 dB
max. 0,2
dB
max. 0,4
dB
min. 20
dB
min. 35
dB
min. 20
dB
min. 20
dB
Group delay ( mean value)
Group delay ripple
fN ± 50 kHz
fN ± 50 kHz (p-p)
0,78 µs
60 ns
max. 1
µs
max. 1
µs
Return loss with matching
network (S11 / S22 ) in
Input power level
fN ± 100 kHz:
15 dB
-
min. 10
max. 10
dB
dBm
Frequency inversion temperature ( To ) :
Temperature coefficient of frequency ( Tcf ) :
Frequency deviation of fc over temperature: ** )
37 ° C
- 0,036 ppm/K²
∆fc(Hz) = Tcf(ppm/K) x (T - To)² x fO (MHz)
Operating temperature range ( OTR ) :
Storage temperature range :
- 5 °C ... + 80 °C
- 40 °C ... + 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.
**) fO = fTo is reference frequency fc at frequency inversion temperature (To )
Generated:
Checked/Approved:
Wadim Dunzow
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
E-Mail: [e-mail]
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