FMSA EMI FILTER
0.8 AMP
EMI I
NPUT
F
ILTERS
Typical Performance Curves: 25°C Tc , nominal Vin, unless otherwise specified.
90
80
A)
70
60
50
40
30
20
10
0
CE
03
NARROWBAND
EMISSION LEVEL (dB
LI
M
IT
.015
0.1
1
FREQUENCY (MHz)
10
50
MSA2805S converter without a filter.
F
IGURE
4
90
80
A)
70
60
50
40
30
20
10
0
CE
03
NARROWBAND
EMISSION LEVEL (dB
LI
M
IT
.015
0.1
1
FREQUENCY (MHz)
10
50
MSA2805S converters at full load with
an FMSA-461 EMI filter
F
IGURE
5
10.0
MAGNITUDE OF Zo (Ohms)
3.2
1.0
0.32
0.10
2
µF
external capacitor on filter output
1K
10K
100K
FREQUENCY (Hz)
1M
Typical Output Impedance (Z)
With Input Shorted
FMSA-461 EMI Filter
F
IGURE
6
®
4