Spread Spectrum Clock Generators for solving EMI Spread Spectrum Clock Generation Technology Benefits of Lexmark Modulation Waveform The advantages of Lexmark’s modulation waveform for EMI attenuation derive from its unique, patented shape, one embodiment of which is shown in Figure 1. In Figure 3. Experimental Test Setup addition to the shape shown in Figure 1, other waveforms are covered by Lexmark patents (such as the triangular, or This setup simulates a 100 MHz 0.5% down-spread linear, waveform). A less efficient ‘sharkfin’, or system clock. In this setup, the arbitrary waveform exponential, waveform as see……