Analog Devices EVAL-LT8355-1-AZ, Manual, Page: 8 / 14

8
DEMO MANUAL EVAL-LT8355-1-AZ
Rev. 0
TEST RESULTS
Figure 9. Conducted Emissions (Voltage Method): 12V
IN
, Channel 1, 72V
LED
450mA, Channel 2, 30V
LED
1A
Figure 10. Conducted Emissions (Current Method): 12V
IN
, Channel 1, 72V
LED
450mA, Channel 2, 30V
LED
1A
Figure 11. Radiated Emissions: 12V
IN
, Channel 1, 72V
LED
450mA, Channel 2, 30V
LED
1A
(a) CISPR25 Peak (b) CISPR25 Average
(a) CISPR25 Peak (b) CISPR25 Average
(a) CISPR25 Peak (b) CISPR25 Average
CLASS 5 PEAK LIMIT
EVAL-LT8355-1-AZ
EVAL-LT8355-1-AZ WITH SHIELD
AMBIENT
FREQUENCY (MHz)
0.1 1 10 108
–20
–10
0
10
20
30
40
50
60
70
80
PEAK CE (dBµ
V)
eval-lt8355-1-az F09a
CLASS 5 AVERAGE LIMIT
EVAL-LT8355-1-AZ
EVAL-LT8355-1-AZ WITH SHIELD
AMBIENT
FREQUENCY (MHz)
0.1 1 10 108
–20
–10
0
10
20
30
40
50
60
70
80
AVERAGE CE (dBµ
V)
eval-lt8355-1-az F09b
CLASS 5 PEAK LIMIT
EVAL-LT8355-1-AZ
EVAL-LT8355-1-AZ WITH SHIELD
AMBIENT
FREQUENCY (MHz)
0.1 1 10 108
–60
–50
–40
–30
–20
–10
0
10
20
30
40
50
60
PEAK CE (dBµA)
eval-lt8355-1-az F10a
CLASS 5 AVERAGE LIMIT
EVAL-LT8355-1-AZ
EVAL-LT8355-1-AZ WITH SHIELD
AMBIENT
FREQUENCY (MHz)
0.1 1 10 108
–60
–50
–40
–30
–20
–10
0
10
20
30
40
50
60
AVERAGE CE (dBµA)
eval-lt8355-1-az F10b
CLASS 5 PEAK LIMIT
EVAL-LT8355-1-AZ
EVAL-LT8355-1-AZ WITH SHIELD
AMBIENT
FREQUENCY (MHz)
0.1 1 10 100 1000
–20
–10
0
10
20
30
40
50
60
PEAK RE (dBµ
V/m)
eval-lt8355-1-az F11a
CLASS 5 AVERAGE LIMIT
EVAL-LT8355-1-AZ
EVAL-LT8355-1-AZ WITH SHIELD
AMBIENT
FREQUENCY (MHz)
0.1 1 10 100 1000
–20
–10
0
10
20
30
40
50
60
AVERAGE RE (dBµ
V/m)
eval-lt8355-1-az F11b