The converter USES a high order MASH noise shaping technique and a digital decimation filtering part consisting of comb filters and cascade of half band filters.
该转换器采用了高阶MASH噪声成形技术，而其数字抽取滤波部分则由梳状滤波器与级联的半带滤波器构成。
According to the character of FPGA, the FIR digital decimation filter is implemented via using distribution algorithms which are based on the technique of looking up table.
根据FPGA芯片的特点，FIR数字抽取滤波器采用分布式算法来实现，这种方法实现的基础是查找表。
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