TFS157A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 157a.doc
VI TELEFILTER
Version 1.2
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
25
°C
0
dBm
443 Ω || - 6, 2 pF
398 Ω || - 6, 5 pF
TFS 157A
29.09.2008
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 157A is the maximum attenuation in the pass band. The maximum attenuation in the pass
band is defined as the insertion loss ae. The nominal frequency f_N is fixed at 157 MHz without any tolerance or limit. The values of relative attenuation arel
are guaranteed for the whole operating temperature range. The frequency shift of the filter in the operating temperature range is included in the production
tolerance scheme.
Data
Insertion loss
(reference level)
Nominal frequency
Passband
Pass band ripple
p-p
Bandwidth
1,2 dB
Relative attenuation
f_N ± 17,5 MHz … f_N ± 20
f_N ± 20
MHz
f_N ± 100
f_N ± 100
MHz
f_N ± 150
Absolute group delay within PB
Group delay variation within PB p-p
Return loss
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
ae
f_N
PB
BW
arel
MHz
MHz
MHz
OTR
TCf **
typ. value
8,4
-
-
1,0
23,310 MHz
11,5
-
-
0,17
27
8
-
-
-
-88
dB
µs
ns
dB
ppm / K
tolerance / limit
max.
10,0 dB
f_N ±
max.
157,0
10,0
1,2
MHz
MHz
dB
min.
20 MHz
min.
8 dB
min.
15 dB
min.
35 dB
max.
0,2 µs
max.
80 ns
min.
5 dB
max.
10 dBm
- 20 °C ... + 70 °C
- 45 °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.
**) ∆ f(Hz) =TC_f(ppm/K) x(T-T₀) x f_To (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.