TFS246KC Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

t_{_}fs_{_}2_{_}4_{_}6_{_}k_{_}c._{_}D_{_}o_{_}c_{_______________________________________________________________}v_{_}e_{_}rs_{_}i_{_}on_{__}1_{_}.1_{_______________________}0_{_}1_{_}/9_{_}9
V_{__}I_{__}T_{_}E_{__}L_{_}E_{__}F_{_}I_{_}L_{__}T_{_}E_{__}R_{_______________________}F_{__}i_{_}lt_{_}e_{__}r_{_}s_{__}p_{_}e_{_}c_{__}i_{_}fi_{_}c_{_}a_{__}t_{_}io_{__}n_{_____________}T_{__}F_{_}S_{___}2_{__}4_{_}6_{__}K_{__}C_{__________}1_{__}/4_{______}
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
23 °C
0 dBm
450 Ω || -3.4 pF
Construction and pin connection
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 246 KC 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 246 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.
Preliminary Data
typ. value
limit
_________________________________________________________________________________________________________
Insertion loss
ae = amin
6
dB
max 7
dB
(Reference level)
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Center frequency
fo
246
MHz
-
_^N_^o_^r_^m_ⁱ_ⁿ_^a_^l _^fr_^e_^q_^u_^e_ⁿ__^c_^y______^fN____________________________________-____________________________2_4_6______M_H_z________
Relative attenuation
arel
246,0 MHz ± 80 kHz
max 3
dB
246,0 MHz ± 200 kHz ... 246,0 MHz ± 400 kHz
12
246,0 MHz ± 400 kHz ... 246,0 MHz ± 600 kHz
30
246,0 MHz ± 600 kHz ... 246,0 MHz ± 1,6 kHz
35
246,0 MHz ± 1,6 MHz ... 246,0 MHz ± 3 MHz
50
246,0 MHz ± 3 MHz ... 246,0 MHz ± 25 MHz
55
min 5
dB
min 25
dB
min 31
dB
min 41
dB
min 50
dB
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Group delay distortion GDD
246,0 MHz ± 50 kHz
0,7 µs
max 1,2 µs
246,0 MHz ± 75 kHz
1,1 µs
max 2,5 µs
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Operating temperature range
- 20 °C ... + 85 °C
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Temperature coefficient of frequency TC
ca. - 0,036 ppm/K²
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Frequency inversion temperature
+ 20 ... + 30 °C
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generated:
checked / approved:
______________________________________________________________________________________________________
VI TELEFILTER
Vectron International, Inc.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
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