A decade ago, ARM processors were mainly found in cell phones, disk drives, and few other specialized applications. These days, they seem to be everywhere, from microcontrollers to tablet PCs. During this same time period, digital signal processing (DSP) tasks—such as multimedia and communications functions—have also become increasingly common in a wide range of systems. Given these two trends, it’s no surprise that there’s been a big uptick in products using ARM processors to implement digital signal processing tasks.