TFS433K Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

file: tfs433k.doc
version 1.1
05/98
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VI TELEFILTER
Filter specification
TFS 433 K
1/4
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Measurement condition
Ambient temperature:
23 C
Input power level:
0 dBm
Terminating impedances:
Input:
370 || - 0.9 pF
Output:
370 || - 0.9 pF
Construction and pin connection
see page 2
Stability characteristics and packing
see page 3
Air reflow temperature conditions
see page 4
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 433 K 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 fo 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 on 433.42 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 also if the centre frequency fo 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 fo.
Data
typ. value
limit
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Insertion loss
(Reference level)
ae = amin
4 dB
max. 5 dB
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Nominal frequency
fN
-
433,42 MHz
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3 dB - bandwidth
BW
260 kHz
min. 150 kHz
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Relative attenuation
arel
fN - 10 MHz ... fN - 1,2 MHz
-
min. 45 dB
fN - 1,2 MHz ... fN - 500 kHz
-
min. 30 dB
fN - 75 kHz ... fN + 75 kHz
-
max. 3 dB
fN + 500 kHz ... fN + 1,2 MHz
-
min. 30 dB
fN + 1,2 MHz ... fN + 10 MHz
-
min. 45 dB
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Temperature coefficient of the frequency TCf
- 0.032 ppm/K²
-
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Operating temperature range
- 30 °C ... + 70 °C
Storage temperature range
- 30 °C ... + 85 °C
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Frequency inversion temperature To
25
°C
-
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Note 1) - f (Hz) = TC (ppm/K²) x (T - To)² x FTo (MHz)
Generated:
Checked / approved:
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VI TELEFILTER / Potsdamer Straße 18 / D 14 513 TELTOW
Phone: [phone] / Fax: [phone] / E-Mail: [e-mail]
file: tfs433k.doc
version 1.1
05/98
______________________________________________________________________________________________________