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Review of Retiming based Digital Filter for Low Power Consumption
The power dissipation is the limiting factor in the digital signal processing. This paper provides the review of the low power techniques such as voltage scaling, positioning of the flip flop, reduce the switching activity along with the transformation techniques such as retiming, pipelining, and folding. Digital filters are the most common block in the signal processing applications. They are represented by data flow graph. Applying the retiming techniques, low power and high speed digital filter can be achieved. Retiming can be done through pipelining and cut set retiming. Low power filters can be achieved with the supply voltage scaling and the high speed can be controlled by minimization of register and clock period.
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