Datasheet

NCS6 Series
Isolated 6W 4:1 Input Single & Dual Output DC/DC Converters
KDC_NCS6C.D04 Page 8 of 10
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EMC FILTERING AND SPECTRA
FILTERING
The module includes a basic level of filtering, the following table shows the additional input capacitor typically required to meet EN 55022 Curve A Quasi-Peak EMC limit, as
shown in the below plots.
NCS6D1205C NCS6D1212C
NCS6D1215C NCS6D4805C
NCS6D4812C NCS6D4815C
0
10
20
30
40
50
60
70
80
90
100000 1000000 10000000 1000000
00
Frequency (Hz)
C onducted E missions (dB uV )
NCS6D1205C 2.2µF NCS6S1203C 4.7µF
NCS6D1212C none NCS6S1205C 4.7µF
NCS6D1215C none NCS6S1212C 10µF
NCS6D4805C 10µF NCS6S1215C 10µF
NCS6D4812C 10µF NCS6S4803C 4.7µF
NCS6D4815C 10µF NCS6S4805C 10µF
NCS6S4812C 10µF
NCS6S4815C 10µF
0
10
20
30
40
50
60
70
80
90
100000 1000000 10000000 100000000
Frequency (Hz)
Conducted E missions (dB uV )
0
10
20
30
40
50
60
70
80
90
100000 1000000 10000000 100000000
Frequency (Hz)
C onducted E mis s ions (dBuV)
0
10
20
30
40
50
60
70
80
90
100000 1000000 10000000 100000000
Frequency (Hz)
C onducted E missions (dB uV )
0
10
20
30
40
50
60
70
80
90
100000 1000000 10000000 100000000
Frequency (Hz)
C onducted E missions (dB uV)
0
10
20
30
40
50
60
70
80
90
100000 1000000 10000000 100000000
Frequency (Hz)
C onducted E missions (dB uV )