ISP器件在高速通信系统中的应用

Application of ISP Device in High Speed Communication System

ISP器件具有集成度高、功能强、速度快、设计灵活和在系统逻辑重构等优点。为了改善数字通信系统发射和接收数据的同步性能,保证系统工作稳定、可靠,用ISP器件实现数字相关器。本文介绍了数字相关器的工作原理,电路设计方案和实现过程。针对通信系统中对速度的要求,在电路设计中采用了流水线技术,用Max+PlusⅡ软件设计了十六位高速数字相关器。给出了十六位高速数字相关器顶层逻辑电路图及仿真波形图,由波形图可以看出,系统工作速度等于时钟频率。系统仿真正确后,用ISP器件实现了高速数字相关器。

ISP devices have many merits such as high integrity, strong function,rapid speed,agility design and in system logic reconstruction. Realizing high speed digital correlator using ISP device in order to improve the data synchronization of the digital communication system and make the system stable and reliable. The paper introduces the principle of digital correlator,the design scheme of circuit and the realizing process. Designing sixteen bits high speed digital correlator using Max＋Plus Ⅱ software and adopting pipeline technique in circuit in order to meet the speed of the digital communication system. Giving a top level circuit of sixteen bits high speed digital correlator and a simulation waveform. Finally,realizing high speed digital correlator with ISP device.