TFS420B Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter specification

f_{_}il_{_}e:_{_}T_{_}F_{_}S_{_}4_{_}2_{_}0_{_}b_{_}.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_{_}f_{_}ic_{__}a_{_}t_{_}i_{_}o_{_}n_{_______________}T_{_}F_{__}S_{__}4_{__}2_{_}0_{__}B_{_____________}1_{_}/_{_}4_{____}
Measurement condition
Ambient temperature: 23 °C
Input power level:
0 dBm
Source impedance:
162 Ω || -0,39 pF
Load impedance:
162 Ω || -0,39 pF
Construction, pin connection and 50 Ω test circuit
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 420 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
2 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 420 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
3
dB
max. 5
dB
(Reference level)
______________________________________________________________________________________________________
_^N_^o_^m__ⁱⁿ_^a_^l_^f_^re_^q__^u_^e_ⁿ_^c_^y_______^fN____________________________________-____________________________4_2_0______M_H_z____
C_{__}e_{_}n_{_}tr_{_}e_{__}fr_{_}e_{_}q_{_}u_{_}e_{_}n_{_}c_{_}y_{_________}fo_{__________________________________4_2_0_____M__H_z______________________-_____________}
Pass band ripple
f_N__±___1_0___M_H_z_______________________________________________1_____d_B__________________m__a_x_.__2______d_B______
Relative attenuation
arel
320 MHz ... 340 MHz
60
dB
min. 50
dB
365 MHz ... 385 MHz
> 40
dB
min. 40
dB
______________________________________________________________________________________________________
Operating temperature range
- 25 °C ... + 75 °C
______________________________________________________________________________________________________
Temperature coefficient of frequency TCf
- 65
ppm/K
-
______________________________________________________________________________________________________
Input power level
max. 10
dBm
______________________________________________________________________________________________________
*) At the moment we are carrying out tests to check the possibility of guaranteing higher limiting values.
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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E-Mail: [e-mail]
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