TFS845A Datasheet, PDF (1/5 Pages) Vectron International, Inc – Vectron International Filter specification

Filename: tfs 845a.doc
Vectron International
Version 1.2
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
25
°C
0
dBm
184 Ω || -3.1 pF
147 Ω || -4 pF
TFS 845A
07.05.2008
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 845A is the minimum of the pass band attenuation. This value is defined as the insertion loss
ae. The nominal frequency fN is fixed at 845,76 MHz without any tolerance. 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
Bandwidth
1 dB
Relative attenuation
1 MHz … 600
1 GHz … 2
MHz
GHz
Group delay ripple within PB
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
ae
fN
PB
BW
arel
***
OTR
TCf **
typ. value
13,1 dB
0,7 dB
131
MHz
49
dB
47
dB
3
ns
-94
ppm/K
tolerance / limit
max.
15,0 dB
845,76 MHz
f_N
±
max.
55 MHz
1,0 dB
min.
110 MHz
min.
40 dB
min.
30 dB
max.
10 ns
- 40 °C ... + 85° C
- 55 °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 - To) x fTo (MHz).
***) goal is to get the group delay ripple limit towards max. 5ns, this is checked
Generated:
Checked / Approved:
Vectron International GmbH & Co. KG
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
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