TFS300D Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Tfs300D.doc
VI TELEFILTER
Filter specification
version 1.3
TFS 300 D
25.08.2003
1/5
1. Measurement condition :
Ambient temperature TA:
Input power level:
Terminating impedances at fc *) :
23 °C
0 dBm
for input:
29,5
for output:
206
- 16,1 pF
- 9,0 pF
2. Characteristics
Remark: Reference level for the relative attenuation arel of the TFS 300D 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 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 nominal frequency fN is fixed at 300 MHz without tolerance.
The given values for the relative attenuation arel and for 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
Nominal frequency
Centre frequency
Centre frequency
fN
at ambient temperature (fCTA)
fc at temperature T = 37,5°
Pass band in OTR :
PB
Amplitude ripple in PB (p-p) :
Bandwidth at TC = 37,5 °C :
1 dB
5 dB
15 dB
Relative attenuation in in OTR
fN
fN ± 10,58
fN ± 11,12
... fN ±
MHz ... fN ±
MHz ... fN ±
9,42
11,12
40
arel
MHz
MHz
MHz
Group delay ( mean value in PB ):
Group delay ripple (p-p) in PB :
typ. value
20,2 dB
-
300,087 MHz
300,000 MHz
0,4 dB
19,6
20,4
21,0
MHz
MHz
MHz
0,4 dB
15
dB
23
dB
1,28 µs
60
ns
tolerance / limit
max. 21
dB
300
MHz
-
-
f_N ... f_N ± 9,42 MHz
max. 1
dB
min.
max.
max.
18,84
21,70
22,24
MHz
MHz
MHz
max. 1
dB
min. 5
dB
min. 15
dB
max. 1,5 µs
max. 100
ns
Triple transit attenuation compared to main signal
42
dB
max. 34
dB
Temperature coefficient of frequency ( Tcf )
Frequency deviation of fc over temperature: ** )
Operating temperature range
Storage temperature range
OTR
- 20 ppm/K
- 17,8
fc(Hz) = Tcf(ppm/K) x (T - TCTA) x fCTA (MHz) -
ppm/K
-
+ 10 °C ... + 65 °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.
generated:
checked / approved:
TELEFILTER GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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