摘要
介绍了一种利用锁相环频率合成技术和数字波形合成技术组成的程控低频正弦波信号发生器,频率分辨率0.1Hz,输出正弦波频率和幅值的精度高,稳定性好,且失真度很低,电路简单,可靠,便于程控,可作为标准正弦信号源应用于高准确度仪表中。
A program - controlled low - frequency sinusoidal generator is introduced. It employs phase - locked loop frequency synthesizer and digital wave synthesizer technology. Its frequency resolution is 0. 1 Hz. Output - sine wave frequency and amplitude show high precision, good stability and low distortion. The circuit is simple, reliable and programmable - controlled. It can be used in high - precision devices as standard sine wave signal generator.
出处
《实验科学与技术》
2008年第2期16-17,63,共3页
Experiment Science and Technology
关键词
锁相环
数字合成
标准正弦波
phase- locked loop
digital synthesize
standard sine wave
