TFS280A Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter Specification

t_{_}fS_{_}2_{_}8_{_}0_{_}a_{_}.d_{_}o_{_}c_{________________________________________________________________________}v_{_}e_{_}rs_{_}i_{_}on_{__}1_{_}.3_{_________}11_{_}/_{_}9_{_}8_{___}
VI TELEFILTER
Filter Specification
TFS 280 A - 1/4
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Measurement condition
Ambient temperature: 23 °C
Input power level:
0 dBm
Terminating impedances
for input: 605 Ω // -1.1 pF
for output: 605 Ω // -1.1 pF
Construction and pin configuration
see page 2
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 280 A 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 280,455 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
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Insertion loss
ae = amin
-
max.
5
dB
(Reference level)
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N_{__}o_{_}m_{__}in_{_}a_{_}l_{_}f_{_}re_{_}q_{__}u_{_}e_{_}n_{_}c_{_}y_{_______}fN_{____________________________________-____________________________2_8_0_,4_5_5___M_H_z_____}
Guaranteed 3 dB signal band width
BW
165
kHz
min. 70
kHz
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Relative attenuation
arel
fN ± 35 kHz
-
max. 3
dB
fN ± 200 kHz
fN ± 420 kHz
-
min. 10
dB
-
min. 55
dB
Ultimate rejection
63
dB
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Group delay ripple
GD
_fN__±___3_5___k_H_z_______________________________________________-_____________________m__a_x_. _____2______^µ_s______
Intermodulation
Input IP-3
-
min. + 15
dBm
_^(fN___±__2_5__k_H_z__a_n_d__^fN__±__5_0__k_H__z__e_a_c_h_o_f_-_2_0_d_B_m__)____________________________________________________________
Operating temperature range
- 20 °C ... + 85 °C
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Storage temperature range
- 40 °C ... + 85 °C
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Temperature coefficient of frequency TC
ca. - 0.036 ppm/K²
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Frequency inversion temperature
+ 30 °C
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Generated:
Checked / approved:
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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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