The real world, where we live day by day, is the realm of analogue signals. Read this overview about ADC (Analog to Digital Converter) and DAC (Digital to Analog Converter)

Howto interface an Analog to Digital Converter (ADC) to the FPGA board. In this post I will give some ideas about interfacing an ADC to the FPGA design. One of the Digilent Inc.’s product is the ADC module codenamed Pmod-AD1.

I will focus on DSP (digital signal processing) on FPGA to see the advantages and disadvantages.DSP (digital signal processing) is implied in some specific applications where the necessary filter order is too high or the computation scheme is too complex for analog circuit implementation. Analog signal filtering in the discrete domain can be done with the use of a simple processing chain, containing an analog-digital converter (ADC), a computation unit that can be a DSP, an FPGA either a personal computer, and a digital-analog converter. In this article I will concentrate on a processing chain with an FPGA and describe the advantages and disadvantages of it.