Quick Start Procedure - Analog Devices DC2958A Demo Manual

QUICK START PROCEDURE

Figure 3. LT8609A-5 Demo Circuit EMI Performance in CISPR25 Radiated Emission Test,
Figure 4. LT8609A-3.3 Demo Circuit EMI Performance in CISPR25 Radiated Emission Test,
(CISPR25 Radiated Emission Test with Class 5 Peak Limits)
60
50
40
30
20
10
0
–10
–20
0 100 200 300 400
FREQUENCY (MHz)
DC2958A–A/ DC2958A–B DEMO BOARD
(WITH EMI FILTER INSTALLED)
14V INPUT TO 5V OUTPUT AT 2A, f
(V = 14V, V = 5V, I = 2A, 2MHz Switching Frequency)
IN OUT OUT
(CISPR25 Radiated Emission Test with Class 5 Peak Limits)
60
50
40
30
20
10
0
–10
–20
0 100 200 300 400
FREQUENCY (MHz)
DC2958A–C DEMO BOARD
(WITH EMI FILTER INSTALLED)
14V INPUT TO 3.3V OUTPUT AT 2A, f
(V = 14V, V = 3.3V, I
IN OUT OUT
DEMO MANUAL DC2958A
CLASS 5 PEAK LIMIT
SPREAD SPECTRUM MODE
FIXED FREQUENCY
500 600 700 800 900
DC2958 F03
= 2MHz
SW
CLASS 5 PEAK LIMIT
SPREAD SPECTRUM MODE
FIXED FREQUENCY
500 600 700 800 900
DC2958 F04
= 2MHz
SW
= 2A, 2MHz Switching Frequency)
1000
1000
Rev. 0
3