It must be emphasized that FPGA are integrated circuits reprogrammable by the designer and can be used for different projects, or in a project during its different phases. FPGAs have benefits outweigh the DSP because the FPGA final architecture can be configured in a fully flexible way, in both data and operations size. The FPGA have significant physical benefits, without reaching the performances of ASIC. In the middle are FPGA, which have a reasonable cost for the design of prototypes in general an intermediate cost to the two previous cases. This is because the architecture is rigid, in both data and operations formats. In fact, when the volume of calculus is high, easily they do not have real time response. The DSPs do not have the best physical performances normally they occupy maximum area, have high power consumption and maximum delay. This technology achieves good physical performances: low area, low power consumption and minimal delays.Īt the other extreme Digital Signal Processor (DSP) can be used which are very cheap ( Maxfield, 2004). In principle, an Application Specific Integrated Circuit (ASIC) can be used ( Maxfield, 2004), but to configure these devices must be sent to the manufacturer, which increases development time and makes more expensive the prototype. Initially, there were several alternatives for the system hardware.

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