3.10 Frequency / Voltage Control

Figure 3.14: Spread Spectrum Control screen

3.10.1 Spread Spectrum

This setting allows you to reduce EMI by modulating the signals the CPU generates so that the spikes are reduced to flatter curves. This is achieved by varying the frequency slightly so that the signal does not use any par- ticular frequency for more than a moment. The choices are “Disabled” and “Enabled”.

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Advantech DVMB-554E user manual Frequency / Voltage Control, Spread Spectrum