程控高频波形发生卡的研制

Development of a programmable high frequency waveforms generator card

介绍了一种适用于ＰＣ计算机的可程控高频波形产生卡，它以ＭＡＸＩＡＭ 公司的ＭＡＸ０３８ 高频波形产生器芯片为核心构成，通过微机ＩＳＡ扩展槽对其进行程序控制。输出波形有正弦波、方波、三角波，频率范围为２０ Ｈｚ～２０ ＭＨｚ，占空比、幅度、直流偏移等均可程序调整。

A kind of Programmable High Frequency Waveform Generator card (PHFWG) applied to PC computer is introduced. Its nuclear part is the chip of programmable high frequency waveform generator MAX038, which is controlled by the program through the micro computer ISA socket. The output waveforms of sine, rectangle and triangle can be generated, the frequency range is from 20 Hz to 20 MHz, and the ratio of the widths of positive and negative pulses, amplitude, DC offset etc. are all adjustable.