Analog Devices Linear ADI Power LTC3310-1 Manual page 6

DEMO MANUAL DC3043A
EMI TEST RESULTS
Radiated EMI Performance (CISPR25 Radiated
Emission Test with Class 5 Peak Limits)
60
HORIZONTAL POLARIZATION
50
40
30
20
10
0
–10
–20
0 100 200 300 400
FREQUENCY (MHz)
DC3043A DEMO BOARD
(WITH EMI FILTER INSTALLED)
3.3V INPUT TO 1V OUTPUT AT 8A, f
6
Conducted EMI Performance (CISPR25 Conducted
Emission Test with Class 5 Peak Limits)
60
50
40
30
20
10
0
–10
–20
0 10 20 30 40
FREQUENCY (MHz)
DC3043A DEMO BOARD
(WITH EMI FILTER INSTALLED)
3.3V INPUT TO 1V OUTPUT AT 8A, f
CLASS 5 PEAK LIMIT
MEASURED EMISSIONS
AMBIENT NOISE
500 600 700 800 900 1000
dc3043a EMI02
= 2MHz
SW
CLASS 5 PEAK LIMIT
MEASURED DATA
AMBIENT NOISE
50 60 70 80 90 100
dc3043a EMI01
= 2MHz
SW
Radiated EMI Performance (CISPR25 Radiated
Emissions Test with Class 5 Peak Limits)
60
VERTICAL POLARIZATION
50
40
30
20
10
0
–10
–20
0 100 200 300
DC3043A DEMO BOARD
(WITH EMI FILTER INSTALLED)
3.3V INPUT TO 1V OUTPUT AT 8A, f
110
CLASS 5 PEAK LIMIT
MEASURED EMISSIONS
AMBIENT NOISE
400 500 600 700 800
FREQUENCY (MHz)
= 2MHz
SW
900 1000
dc3043a EMI03
Rev. 0