摘要
简单介绍直接数字频率合成(DDS)的结构和原理,以CPLD为核心产生幅度、频率皆精确可调的正交信号源,采用红外键盘使系统更易于控制。
The system structure and principle of DDS are introduced.Using CPLD as core,the system produces orthogonal signal sourec which frequency and examplitudeent are all exactly adjustable.The system is easily controlled by the infrared keyboard.
出处
《电子设计工程》
2009年第7期71-72,共2页
Electronic Design Engineering
