基于FPGA的模数转换芯片AD7705/AD7706控制电路设计  

The Design of Control Circuit for ADC Chip AD7705/AD7706 Based on FPGA

作　　者：赵晨[1] 周义明[1] ZHAO Cheng;ZHOU Yiming(School of Information Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China)

机构地区：[1]北京石油化工学院信息工程学院

出　　处：《北京石油化工学院学报》2019年第4期54-58,共5页Journal of Beijing Institute of Petrochemical Technology

摘　　要：为提高AD7705/AD7706芯片的稳定性、更新速率和配置便利性。基于FPGA强大的并行运算能力和顶层设计思想,设计了基于FPGA为主控机的模数转换控制电路,该电路实现了对AD7705/AD7706内的多个寄存器的快速读写配置和灵活的工作模式设定。ModelSim仿真结果表明,在较高时钟频率控制下实现了FPGA对寄存器进行的合理配置,并正确采集到了模数转换后的数据。In order to improve the stability,update rate and configuration convenience of the AD7705/AD7706 chip.Based on the powerful parallel computing capability and top-level design idea of FPGA(Field Programmable Gate Array),an ADC(analog-to-digital converted)control circuit based on FPGA is designed.This circuit realizes the fast read or write configuration and the setting of flexible working mode for multiple registers in AD7705/AD7706.The ModelSim simulation testifies that FPGA has a reasonable configuration for the registers and correctly acquired the ADC data.

关 键 词：模数转换 控制电路 FPGA 寄存器配置 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TN47[自动化与计算机技术—控制科学与工程]