本文介紹了一種基于PXI 總線的高速信號發(fā)生器的設(shè)計理論和實現(xiàn)方法，從硬件和軟件
兩個方面詳細(xì)介紹了系統(tǒng)的設(shè)計方法。該平臺基于高速數(shù)模轉(zhuǎn)換器MAX5887 和高性能可編程邏輯器件VIRTEX-4 SX35，可以實現(xiàn)500Msps 的轉(zhuǎn)換率和14 位的分辨率；接口上采用PXI總線技術(shù)，采用PCI9054 作為接口芯片；軟件開發(fā)上采用DLL+API 的模式，方便不同用戶的定制。
關(guān)鍵詞：信號發(fā)生器 PXI 總線 PCI9054 MAX5887 VIRTEX-4
Abstract This article introduced a design principles and implementation method of a
high-speed signal generator based on PXI bus technology. It described the system
composition from hardware and software. This platform is based on high-speed DAC
MAX5887 and high performance FPGA—VIRTEX-4 SX35, and it realized 500Mhz update rate
and 14 bit resolutions; PCI9054 are used as interface IC for PXI bus; DLL+API mode
are used in software development, convenient for different user’s customization.
Keywords: Signal Generator PXI PCI9054 MAX5887 VIRTEX-4