This design construct an sinusoidal signal generator based on DDS(Direct Digital Frequency Synthesis), completed by MCU AT89S52 and necessary analog circuit.
本设计采用AT89S52单片机，辅以必要的模拟电路，实现了一个基于直接数字频率合成技术（DDS）的正弦信号发生器。
The software is composed of two parts: the communication programming of 3350 main board and the analog code pro? gramming of the signal generator.
软件包括两部分：与外部系统 3350主板之间的通信编程和信号发生器本身的模拟编码发送编程。
In this paper a new type of PAL and NTSC color bar signal generator is described, which consists of a few digital integrated circuits and two analog integrated circuits.
本文介绍了一种新型的彩条信号发生器的设计方法。这种彩条信号发生器由少数几片数字集成电路和两片模拟集成电路构成。
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