摘要 文中提出用DDS芯片AB9852实现QAM数字调制的新方法,扩展AB9852在数字调制方面的应用。 。 .
关键词 QAM调制 单片机 DDS
-Abstract In this paper, using DDS chip QAM digital modulation AB9852 realize the new method, the expansion of AB9852 in the digital modulation applications. . . Key words single-chip QAM modulator DDS
实现一个基于8051单片机控制的4相步进电机系统 ,由单片机产生正确的驱动脉冲信号。-8051 based on the realization of a controlled 4-phase stepper motor systems, from single-chip driver generate the correct pulse signal.