TFS244B Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

t_{_}fs_{_}2_{_}4_{_}4_{_}b_{_}.e_{_}n_{_}g_{________________________________________________________}v_{_}e_{_}rs_{_}i_{_}on_{__}1_{_}.1_{_________________________}0_{_}6_{_}.0_{_}1_{_}._{_}02_{_}
V_{__}I_{__}T_{_}E_{__}L_{_}E_{__}F_{_}I_{_}L_{__}T_{_}E_{__}R_{___________________________}F_{_}i_{_}l_{_}te_{__}r_{_}s_{__}p_{_}e_{__}c_{_}i_{_}f_{_}ic_{__}a_{_}t_{_}i_{_}o_{_}n_{____________}T_{__}F_{_}S_{__}2_{_}4_{__}4_{__}B_{_____________}1_{_}/_{_}4_{_}
Measurement condition
Ambient temperature: 23 C
Input power level:
0 dBm
terminating impedances: t.b.d, near 500 Ohm
Construction and pin connection
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 244 B 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 244 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
______________________________________________________________________________________________________
Insertion loss
ae = amin
3.5
dB
max 5
dB
(Reference level)
______________________________________________________________________________________________________
N_{__}o_{_}r_{_}m_{_}i_{_}n_{_}a_{_}l _{_}fr_{_}e_{_}q_{_}u_{_}e_{_}n_{__}c_{_}y_{______}fN_{__________________________________2_4_4_____M__H_z______________________-_____________}
_^In__^b_^a_ⁿ_^d_^r_ⁱ_^p_^p_^le____________in__^fo__±_8_0__kH__z__________________________-______________________________1_,0__d_B_________
Relative attenuation
arel
244,0 MHz ± 80 kHz
max 3
dB
244,0 MHz ± 400 kHz ... 244,0 MHz ± 600 kHz
min 25
dB
244,0 MHz ± 600 kHz ... 244,0 MHz ± 800 kHz
min 40
dB
244,0 MHz ± 800 kHz ... 244,0 MHz ± 1,6 MHz
min 45
dB
244,0 MHz ± 1,6 MHz ... 244,0 MHz ± 10 MHz
min 50
dB
______________________________________________________________________________________________________
Group delay distortion GDD
244,0 MHz ± 80 kHz
1
µs
max 1,5 µ s
______________________________________________________________________________________________________
Operating temperature range
- 20 C ... + 85 C
______________________________________________________________________________________________________
Temperature coefficient of frequency TC
ca. - 0,036 ppm/K²
______________________________________________________________________________________________________
Frequency inversion temperature
+ 20 ... + 30 C
______________________________________________________________________________________________________
generated:
checked / approved:
______________________________________________________________________________________________________
VI TELEFILTER
Vectron International, Inc.
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267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
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