The Design of Low Power Alternative Rate Outputs Decimation Filters

This paper given a method to design and realize the low power alternative-rate outputs decimation filters.This filters included cascaded integrated comb filters,compensation filter,and half-band filter,in order to decrease its power and area consumption,this paper proposed the method which taken non-recursive and polyphase decomposition to realize the cascaded integrated comb filters,which can saved 21% power and 5% area consumption compared with Hogenaur cascaded integrated comb filters.Besides,when change the output rates,the redundant circuit can be shut down to save more power consumption.