Multi-rate processing and sample rate conversion, or interpolation and decimation as they re known, are a clever digital signal processing (DSP) techniques that broadband and wireless design engineers ...
Over the last several months I have been describing the operation of the digital downconverter (DDC) that exists in the AD9680 which also exists in similar forms in the AD9684, AD9690, and AD9691. To ...
Fig 1. Digital filters are just a combination of multiplications and accumulations. Shown are an IIR filter with feedback and an FIR filter with a series of weighted samples (taps). Fig 2. Starting ...