TFS225A Datasheet, PDF (1/4 Pages) Vectron International, Inc – Filter Specification

tfs225A.doc
VI TELE FILTER
version 2.1
Filter Specification
29.09.2000
TFS 225A
1/4
Measurement Condition
Ambient temperature: 23 °C
Input power level:
0 dBm
Terminating impedances
for input: 440 Ω || -2.6 pF
for output: 440 Ω || -2.6 pF
Coupling coil:
170 nH
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 225 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 fc 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 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 fc 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 fc.
Data
typ. Value
Limit
Insertion Loss
(Reference Level)
ae = amin
3,0 dB
max 5,5 dB
Center Frequency
fc
Relative Attenuation
arel
225,0 MHz
-
225,0 MHz ± 80 kHz
-
225,0 MHz ± 200 kHz ... 225,0 MHz ± 400 kHz
-
225,0 MHz ± 400 kHz ... 225,0 MHz ± 600 kHz
-
225,0 MHz ± 600 kHz ... 225,0 MHz ± 1,6 kHz
-
225,0 MHz ± 1,6 kHz ... 225,0 MHz ± 3,0 MHz
-
225,0 MHz ± 3,0 MHz ...225,0 MHz ± 25,0 MHz
-
max 2
dB
min 8
dB
min 28
dB
min 38
dB
min 48
dB
min 50
dB
Group Delay GD (p-p)
Group Delay Ripple
Group Delay Ripple
225,0 MHz ± 50 kHz
225,0 MHz ± 85 kHz
-
1
µs
1
µs
max 1,2 µs
max 2,0 µs
Operating Temperature Range
Storage Temperature Range
Temperature Coefficient of Frequency TCf
Frequency Inversion Temperature
ca. - 0,036 ppm/K²
25
°C
- 25 °C ... + 80 °C
- 30 °C ... + 85 °C
Generated:
Checked / Approved:
VI TELEFILTER
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Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
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E-Mail: [e-mail]
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