数/模混合信号设计验证中主要问题的分析  

Analysis on Primary Issues in Digital/Analog Mixed-Signal Verification

作　　者：邓军勇[1] 曾泽沧[1] 蒋林[1] 

机构地区：[1]西安邮电学院计算机系,西安710061

出　　处：《半导体技术》2007年第7期565-569,共5页Semiconductor Technology

基　　金：国家"863"计划项目(2003AA1Z1190);陕西省科技攻关项目(2004k05-G4)

摘　　要：数/模混合片上系统的发展日新月异,为保证产品良率,芯片投片前的验证是片上系统设计流程中的关键环节。在数/模混合信号验证方法中,如何对整个混合信号设计的数字模块和模拟模块进行划分,以及如何完成两类模块间数字信号和模拟信号的相互映射传输,是混合验证中的两个主要问题。以一个1∶2解复用的混合信号设计为例,对这两个问题进行了分析讨论,同时从工具角度对两类仿真器之间的同步做了论述,最后采用Cadence的Virtuoso AMS Simulator工具进行了完整的混合信号验证。With the rapid development of digital/analog mixed-signal system-on-a-chip （SOC）, the verification before tape-out is a critical phase during the design flow in order to guarantee the products yield. Two primary issues in the verification are： how to partition the digital modules and analog modules, and how to map and transfer the signals between the two different modules. The analysis on the two issues with a mixed-signal design was presented： the 1：2 demultiplexer, the whole verification was completesd with the cadence virtuoso AMS simulator. The synchronization between the two different simulators at the point of tools＇ development view was analyzed. The complete mixed signal was validated by Virtuoso AMS Simulator of Cadence.

关 键 词：数/模混合信号 协同验证 设计划分 信号映射 同步 

分 类 号：TN47[电子电信—微电子学与固体电子学]