基于单片机的数字式可移相正弦信号发生器设计

Design of a Digital Phase-shifting Sinusoidal Signal Generator Using SCM

介绍一个基于DDS(直接数字频率合成技术)原理利用单片机实现的可移相正弦信号发生器,该信号发生器可输出两路正弦交流信号,它们的幅值、频率及相位差值皆可键控调节并可数码显示.

A phase-shifting sinusoidal signal generator using SCM and based on the principle of DDS was intro- duced. It can put out two groups of sinusoidal signals whose peak-to-peak values, frequencies and phases can be controlled by the keyboard and displayed on LED.