Regulatory bodies set limitations on RF emissions emanating from industrial and consumer products. Meeting these standards can be challenging and costly, especially with increasing processor speeds and data rates in today’s electronic systems.
The challenge of combating EMI is compounded as products shrink and are designed to consume less power.
Traditional EMI containment techniques such as shielding become more costly and impractical as products get smaller. Because mechanical solutions are expensive and space consuming, the use of spread spectrum modulation has become a popular means to reduce EMI.
Designers can use a spread spectrum clock generator IC and crystal. However, this combination can also be too bulky, difficult to implement, and inflexible for many applications.
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