Wideband Channelization Architectures in ASICs & FPGAs

摘要

Today, "off-of-the-shelf" highspeed ADCs are available with conversion rates of up to 1.5 Gsps. And even though technology constantly improves dynamic range, the area of signal processing immediately following the ADC is still challenging. Typical processing at this stage involves frequency conversion and channelization. While standard DDC technologies exist for the selection of narrowband channels from a medium bandwidth spectrum, they are limited to only a few simultaneous channels for an economical amount of silicon.