TFS246B Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

t_{_}fs_{_}2_{_}4_{_}6_{_}b_{_}.D_{_}O_{_}C_{________________________________________________________}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_{_}lt_{_}e_{__}r_{_}s_{__}p_{_}e_{_}c_{__}i_{_}fi_{_}c_{_}a_{__}t_{_}io_{__}n_{____________}T_{_}F_{__}S_{___}2_{_}4_{__}6_{_}B_{_____________}1_{__}/4_{____}
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance:
External coil:
23 °C
0 dBm
340 Ohms || -5 pF
100 nH
Construction and pin connection
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 246 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 246,0 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
tolerance / limit
______________________________________________________________________________________________________
Insertion loss
ae = amin
6
dB
max 8
dB
(Reference level)
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C_{__}e_{_}n_{_}tr_{_}e_{__}fr_{_}e_{_}q_{_}u_{_}e_{_}n_{_}c_{_}y_{_________}fo_{__________________________________2_4_6_,0____M__H_z______________________-_____________}
Relative attenuation
arel
246,0 MHz ± 80 kHz
-
max 3
dB
246,0 MHz ± 200
246,0 MHz ± 400
246,0 MHz ± 600
246,0 MHz ± 1,6
246,0 MHz ± 3
kHz ... 246,0 MHz ± 400
kHz ... 246,0 MHz ± 600
kHz ... 246,0 MHz ± 1,6
MHz ... 246,0 MHz ± 3
MHz ... 246,0 MHz ± 25
kHz
kHz
MHz
MHz
MHz
12
dB
34
dB
40
dB
50
dB
> 50
dB
min 2
dB
min 25
dB
min 35
dB
min 45
dB
min 50
dB
N__a_rr_o_w_b_a_n_d__s_p_u_ri_o_u_s_r_e_s_o_n_a_n_c_e_s_(_1_d_B_-b_a_n_d_w__it_h_<__3_5_k_H_z__in__f_{0_+__6_0_0_k_H__z_t_o_f_0_+_1__M_H__z_) ________________m__in__3_2____d_B_____}
Group delay
GD
3,6 µs
-
Group delay ripple
246,0 MHz ± 50 kHz
1
µs
max 1,2 µs
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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.
Potsdamer Straße 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: [phone] / Fax: [phone]
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