TFS498 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 498.doc
VI TELEFILTER
Version 1.3
Filter specification
Measurement condition
Ambient temperature:
23
°C
Input power level:
0
dBm
Terminating impedance:
Input:
200
Ω
Output:
200
Ω
TFS 498
29.07.2004
1/5
Characteristics
Remark:
The reference level for the relative attenuation arel of the TFS 498 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 fN is fixed at 498,00 MHz without any tolerance. The given values for both the
relative attenuation arel and the group delay ripple have to be achieved 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
Passband
Pass band ripple
Relative attenuation
f_N
… f_N ±
8,4
f_N ± 30,0
f_N ± 38,0
MHz … f_N ±
MHz … f_N ±
Operating temperature range
38,0
100,0
Storage temperature range
Temperature coefficient of frequency
*) at 40 °C operating temperature
ae
f_N
f_C
arel
MHz
MHz
MHz
OTR
TCf *
typ. value
3,2
498,00** MHz
2,0 dB
2,0
33,0
50,0
-37
ppm/K
tolerance / limit
max.
5,0 dB
498,00 MHz
max.
f_N ± 8,4 MHz
3,0 dB
max.
3,0 dB
min.
28,0 dB
min.
40,0 dB
0 °C ... + 80°C
- 40 °C ... + 85°C
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.