Design of Low-noise 2 R filter with high-density and Low-power properties


The KIPS Transactions:PartA, Vol. 12, No. 1, pp. 7-12, Feb. 2005
10.3745/KIPSTA.2005.12.1.7,   PDF Download:

Abstract

Scattered look-ahead(SLA) pipelining method can be efficiently used for high-speed or low-power applications of digital II R filters. Although the pipelined filters are guaranteed to be stable by this method, these filters suffer from large roundoff noise when the poles ate crowded within some critical regions. An angle and radius constrained II R filter design approach using modified Remez exchange algorithm and least squares algorithm is proposed to avoid tight pole-crowing in pipelined filters, resulting in improved frequency response and reduced coefficient sensitivities. Experimental results demonstrate that our proposed method leads to chip area reduction by 33% and low power by 45% against the conventional method.


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Cite this article
[IEEE Style]
S. H. Bae and D. I. Kim, "Design of Low-noise 2 R filter with high-density and Low-power properties," The KIPS Transactions:PartA, vol. 12, no. 1, pp. 7-12, 2005. DOI: 10.3745/KIPSTA.2005.12.1.7.

[ACM Style]
Sung Hwan Bae and Dae Ik Kim. 2005. Design of Low-noise 2 R filter with high-density and Low-power properties. The KIPS Transactions:PartA, 12, 1, (2005), 7-12. DOI: 10.3745/KIPSTA.2005.12.1.7.