Altera StratixⅡ GX的多轨供电电路设计

Multiple Track Power Supply Design for Altera StratixⅡ GX

以40 Gbit/s VSR(甚短距离光互连)实验系统的FPGA(现场可编程门阵列)验证平台为例,详细介绍了Altera StratixⅡ GX的多轨供电电路的设计。首先简要介绍了FGPA的电源设计要求,然后介绍了器件选型和几种电源转换芯片的主要功能,最后重点阐述了FPGA的多轨供电电路的设计及PCB(印制电路板)设计、涉及电源PCB设计时的注意事项以及提高系统抗干扰能力的具体措施。

This paper describes a multiple track power supply design for a 40Gbps Very Short Reach （VSR） system using Ahera Stratix Ⅱ GX FPGA. After presenting the design requirements of the FPGA power supply and the primary function of several power supply transform chips, the FPGA multiple track power supply design is described in detail, including schematic design and PCB design, and design experiences of antiinterference are also considered.