常数除法器的设计及其BIST实现  

Design of Constant Divider and Its BIST Implement

作　　者：丁保延[1] 章倩苓[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海200433

出　　处：《Journal of Semiconductors》2000年第5期491-495,共5页半导体学报（英文版）

摘　　要：针对 MPEG音频、AC- 3宽带音频数据压缩标准的解码过程中的要求 ,扩展了已报道的常数除法算法 [1] ,使之适于特定应用场合 .设计实现了除数为一组常数的常数除法器 .该常数除法器使用规整的单元阵列结构构成运算的主要部分 ,不仅相当节省硅片面积 ,适于 VLSI实现需要 ,而且易于扩展 .同时针对测试和实际应用的要求 ,设计了内建自测试电路 ,使之便于嵌入整个系统 .The constant division algorithm that has been reported by Srinivasan to suit for the special application of wide band audio decompression processing, such as MPEG audio and AC\|3,is developped. A structure of constant divider that requires only a certain set of integer divisor is given with the regular cell array as the main part of operation, so this structure is area\|effective, suitable for VLSI implementation, and easily extend its scale. At the same time, for the need of testing and practicable application, we also design the Built\|In Self\|Test circuit to make it easy to embed the whole system.

关 键 词：常数除法器 VLSI 音频 MPEG AC-3 BIST 

分 类 号：TP342.22[自动化与计算机技术—计算机系统结构]