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Design of low-pass elliptic filter based on DDS

Jia Hai-liang

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Abstract

Low-pass filter is an important part of direct digital synthesizer DDS,its performance has a direct impact of the characteristics of the DDS.In this paper,the design of low-pass elliptic filter based on DDS is presented.The design scheme used the new normalization method,and used the simulation Multisim2001 EDA software to determine the filter structure,order,and set the relevant parameters to design a cut-off frequency of 160MHz 7-order elliptic filter.The amplitude frequency characteristics of low pass filter sound with fast decay.Therefore,the design method can be applied in various frequency bands,bands,filter type.

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What this paper is about

Low-pass filter is an important part of direct digital synthesizer DDS,its performance has a direct impact of the characteristics of the DDS.In this paper,the design of low-pass elliptic filter based on DDS is presented.The design scheme used the new normalization method,and used the simulation Multisim2001 EDA software to determine the filter structure,order,and set the relevant parameters to design a cut-off frequency of 160MHz 7-order elliptic filter.The amplitude frequency characteristics of low pass filter sound with fast decay.Therefore,the design method can be applied in various frequency bands,bands,filter type.

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Available abstract

Low-pass filter is an important part of direct digital synthesizer DDS,its performance has a direct impact of the characteristics of the DDS.In this paper,the design of low-pass elliptic filter based on DDS is presented.The design scheme used the new normalization method,and used the simulation Multisim2001 EDA software to determine the filter structure,order,and set the relevant parameters to design a cut-off frequency of 160MHz 7-order elliptic filter.The amplitude frequency characteristics of low pass filter sound with fast decay.Therefore,the design method can be applied in various frequency bands,bands,filter type.

Key concepts: Elliptic filter, Filter design, Low-pass filter, Butterworth filter, High-pass filter, Voltage-controlled filter, Filter (signal processing), Electronic engineering

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