TFS398D Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 398d.doc
VI TELEFILTER
Version 1.3
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Terminating impedance: *
Input:
Output:
23
°C
0
dBm
480 Ω || -5,1 pF
400 Ω || -5,3 pF
TFS 398D
17.08.2006
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 398D is the minimum of the pass band attenuation. This value is defined as the insertion
loss ae. The nominal frequency fN is fixed at 398 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
ae
(reference level)
Nominal frequency
f_N
Centre frequency
f_C
Passband
PB
Pass band ripple
Relative attenuation
f_N
… f_N ±
f_N ±
f_N ±
7
MHz … f_N ±
9,1 MHz … f_N ±
1,75
9,1
100,0
arel
MHz
MHz
MHz
Group delay ripple within PB
Input power level
Operating temperature range
Storage temperature range
Temperature coefficient of frequency
OTR
TCf **
typ. value
7,0 dB
-
398,0
-
0,4
MHz
dB
0,4 dB
40
dB
47
dB
27
ns
-
-
-18
ppm/K
tolerance / limit
max.
10,0 dB
398,0 MHz
-
f_N
±
max.
1,75 MHz
1 dB
max.
min.
min.
1 dB
35 dB
40 dB
max.
60 ns
max.
13 dBm
- 20 °C ... + 85°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.
**) ∆f(Hz) = TCf(ppm/K) x (T-T₀) x fTo(MHz)
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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