TFS246K1 Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

t_{_}fs_{_}2_{_}4_{_}6_{_}k_{_}c._{_}d_{_}oc_{________________________________________________________________}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_{__}1_{_________}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 K1 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
min 10
dB
246,0 MHz ± 400 kHz ... 246,0 MHz ± 600 kHz
30
min 25
dB
246,0 MHz ± 600 kHz ... 246,0 MHz ± 1,6 kHz
35
min 31
dB
246,0 MHz ± 1,6 MHz ... 246,0 MHz ± 3 MHz
50
min 41
dB
246,0 MHz ± 3 MHz ... 246,0 MHz ± 25 MHz
55
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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