Easy Digital Filter Applications for Not-So-Easy RF System Designs
Digital filters provide a meaningful way of controlling the input spectra of communication systems over a wide range of applications. They can filter harmonics or isolate frequency bands to prevent intersymbol interference while saving you from the hassle of part procurement, PCB layout, and variations that come with their analog counterpart. Of course, digital filters are not without flaw,but their elegance and ease of use in increasingly common mixed-signal environments make them a great choice for your systems’ filtering needs. Fear not the complexities of digital design; this article demonstrates a quick and easy method for implementing simple yet powerful digital filters for RF systems.
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