求翻译：本文重点介绍DDS 技术原理、单片机与AD9850 的硬件接口电路以及整个系统的软件设计。本论文的主要成果包括：电路原理图的设计，源程序设计，所产生的正弦信号的频率能够被准确地调节等。是什么意思？

This article focuses on the the dds technical principles, SCM and the ad9850 of hardware interface circuit and software design of the entire system. The main results of this paper include: the design of the circuit schematic, source code, design, and the frequency of the sinusoidal signal can be acc

This article focuses on how technology DDS , and AD 9850 hardware interface circuit, as well as the entire system of software design. This paper's main results include: circuit schematic of the source programming, design, and the frequency of the sinusoidal signal can be accurately adjusted.

This article introduces the DDS technology principle, the monolithic integrated circuit and the AD9850 hardware connection electric circuit as well as the overall system software design with emphasis.The present paper main achievement includes: The electric circuit schematic diagram design, the sour

This article focuses on DDS technology principle, interface circuit of MCU and the AD9850 hardware and software design for the entire system. The paper's main achievements include: design of circuit schematics, source program, the sinusoidal signals of frequencies capable of being accurately adjust.

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