混合信号系统的VHDL-AMS建模与仿真分析

Modeling and Simulation of Mixed-Signal Circuits based on VHDL-AMS

剖析硬件描述语言VHDL-AMS的新特性。通过对A/D转换器和D/A转换器进行建模和仿真分析可以看出,VHDL-AMS突破了VHDL只能设计数字电路的限制,使得VHDL可以应用于模拟以及混合信号建模的领域,实现了模拟电路与数字电路描述与设计方法的统一。

New features of VHDL-AMS is introduced, which is Analog and mixed signal extensions to IEEE standard VHDL. A/D converter and D/A converter are implemented based on VHDL-AMS by mathematical formula. Simulation result of converter is pre-sented. Design of mixed-signal systems is simplified by VHDL-AMS because of its capacity of modeling analog circuits and mixed signal systems.