Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

How does the spread spectrum crystal clock oscillator modulation scheme work to reduce EMI?

0
Posted

How does the spread spectrum crystal clock oscillator modulation scheme work to reduce EMI?

0

Figure 4 below shows a plot of output amplitude versus frequency for a modulated and un-modulated center-spread spectrum clock oscillator. As you can see from the figure, there is a large difference between the frequency span and the amplitude for a given modulated and un-modulated spread spectrum clock oscillator. By modulating the output frequency over a frequency spectrum, a reduction in output amplitude can be achieved. This reduction in output amplitude correlates with a reduction in radiated energy (EMI).

Related Questions

Thanksgiving questions

*Sadly, we had to bring back ads too. Hopefully more targeted.