TFS342 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Tfs342.doc
VI TELEFILTER
version 2.0
Filter specification
Measurement condition
Ambient temperature:
Input power level:
Source impedance:
Load impedance:
23 °C
0dBm
23,5 Ω || -17,8 pF
34,0 Ω || -18.9 pF
TFS 342
06.01.02
1/5
Characteristics
Remark:
Reference level for the relative attenuation arel of the TFS 342 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
2.0 dB filter attenuation level relative to the insertion loss ae. The nominal frequency fN is fixed on 342,5 MHz without tolerance. The given values
for the relative attenuation arel and for the group delay ripple have to be reached at the frequencies given below also 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
typ. value
tolerance / limit
Insertion loss
(Reference level)
ae = amin
9,5 dB
max. 11
dB
Nominal frequency
fN
Pass band
Pass band ripple
fN ± 12,5 MHz
Group delay
Group delay ripple
GD
fN ± 12,5 MHz
Relative attenuation
arel
fN - 341,5 MHz ...
fN + 20,0 MHz ...
fN + 40,0 MHz ...
fN + 207,5 MHz ...
fN - 20,0 MHz
fN + 40,0 MHz
fN + 207,5 MHz
fN + 657,0 MHz
Input compression
1 dB
Input Intermodulation IP3 *)
-
1,2 dB
80
ns
40
dB
35
dB
40
dB
50
dB
-
-
342,5 MHz
max. 2,0 dB
max. 150 ns
min. 35 dB
min. 30 dB
min. 35 dB
min. 27 dB
min. +12 dBm
min. +35 dB
Operating temperature range
Temperature coefficient of frequency TCf
Input power level
- 72
ppm/K
- 25 °C ... + 85 °C
max. +10 dBm
*) frequencies for IP3 measurement: fin1 = 330 MHz and 330.6 MHz, fin2 = 342.2 MHz and 342.8 MHz, fin3 = 354.4 MHz and 355 MHz.
Generated:
Checked / approved:
VI TELEFILTER
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
Vectron International, Inc.
267 Lowell Road
Hudson, NH 03051 / USA
Tel: [phone] Fax: [phone]
E-Mail: [e-mail]
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