TFS315E Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 315e.doc
VI TELEFILTER
Version 1.2
Filter specification
Measurement condition
Ambient temperature:
25
Input power level:
0
Terminating impedance: *
for input:
315 Ω ⎟⎢ - 5,2 pF
for output::
220 Ω ⎟⎢ - 6,7 pF
°C
dBm
TFS 315E
24.01.2005
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS315E 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 nominal frequency f_N is fixed at 315 MHz without tolerance. The given values for the
relative attenuation arel 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
ae
(attenuation at nominal frequency)
Nominal frequency
fN
Passband ripple (p-p) in f_N ± 6,35 MHz
Relative attenuation
arel
fN
......... fN ± 6,35 MHz
fN ± 10,3 MHz ......... fN ± 100 MHz
Group delay ripple
in f_N ± 6,35 MHz
Input power Level
typ. value
15,0 dB
-
0,8 dB
0,8 dB
48 dB
85 ns
-
tolerance / limit
max. 17 dB
315 MHz
max.
1,0 dB
max.
min.
1,0 dB
40 dB
max. 200 ns
max. 10 dBm
Operating temperature range
-
- 40 °C.... + 85 °C
Storage temperature range
-
- 40 °C.... + 85 °C
Temperature coefficient of frequency
TC_f **
-20 ppm/K
-
*) 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) = Tc_f(ppm/K) x (T - T_o) x f_CAT (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.