TFS454 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 454.doc
VI TELEFILTER
Version 1.2
Filter specification
TFS 454
16.04.2004
1/5
Measurement condition
Ambient temperature TA:
Input power level:
Terminating impedances :
23 °C
0 dBm.
100 // -4,0 pF
100 // -4,0 pF
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 454 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 f_o is the arithmetic mean value of the upper and lower frequencies at the 3dB
filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed at 454,00 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 even 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
Insertion loss
(reference level)
Nominal frequency
Centre frequency
Bandwidth
Relative attenuation
fN
-
42,8
MHz
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
ae= amin
fN
fC
BW
arel
OTR
TCf **
typ. value
3,5 MHz
-
454
9,5
MHz
MHz
60
dB
-
-
-32
ppm/K
tolerance / limit
max.
4,5
-
454
MHz
MHz
min.
4,0 MHz
min.
55 dB
- 10 °C ... + 50°C
- 40 °C ... + 85°C
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as reference
values only. Should there be additional questions, do not hesitate to ask for an application note or contact our design team.
** fc(Hz) = Tcf(ppm/K) x (T - TA) x fCAT (MHz)
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.