基于FPGA的软X射线CCD驱动电路设计

摘要

CCD is the core component for realizing space soft X-ray exploring mission. According to the requirements for space soft X-ray exploring, the scientific CCD42-10 BI AIMO produced by E2V Company has high sensitivity, low noise and high readout speed, and a driving circuit based on FPGA is designed. This design is developed on the XC3S500E hardware platform, using VHDL language to describe the driving timing. The CCD is driven by EL7202 chips. The simulation and testing results indicate that the CCD performed stably, and the design matches the driving requirements of CCD42-10 BI AIMO.%CCD是实现空间软X射线探测任务的核心部件，E2V公司的科学级CCD42-10 BI AIMO对空间软X射线探测具有较高的灵敏度、低噪声水平和高读出速度，本文针对该款CCD提出了一种基于FPGA的驱动电路设计方案。选用Xilinx公司的XC3S500E作为驱动电路的核心器件，通过VHDL语言对驱动时序进行了硬件描述，采用EL7202作为CCD驱动芯片。仿真与实验测试结果表明，该设计可以满足科学级CCD42-10 BI AIMO的驱动电路要求。