Implementation of a low-power accumulator for filter applications

被引：0

作者：

Balaram, A ^{[1
]}

Jell, F ^{[1
]}

机构：

[1] SIEMENS Microelect Asia Pacific Pte Ltd, Microelect Design Ctr, Signal Proc Div, Singapore 349253, Singapore

来源：

CONFERENCE RECORD OF THE THIRTY-SECOND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 | 1998年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper a highly power-optimised accumulator is developed which can be used for integration circuits in comb filters. Comb filters have operands of high bitwidth and the accumulators used need huge sign extension at the input. The power consumed by the integration circuits is mainly due to the switching of the input data. By designing the accumulator without sign extension at the input, power reduction of up to 60% is obtained (depending on the input data pattern). Implementations of this optimised accumulator in a 1-channel, 2- and 12-bit input, 25-bit output, 10 MHz comb filter is illustrated in this paper.

引用

页码：223 / 226

页数：4

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