摘要
文中设计了一种以AT89S52为控制核心,基于MAX262的新型智能滤波器,实现-3dB截止频率fc在1kHZ---20kHZ范围内可调,详细介绍了系统的硬件电路和软件框图,实验表明测试结果与理论设计基本吻合,达到了设计的要求。
This article design a new smart filter For the control core to AT89S52, and based on MAX262.1t can achieve -3 dB cutoff frequency fc in 1kHz-20kHz of adjustable,and described the hardware and soflware circuit diagram in detaiLthe experiment show that the test results and the theoretical design is almost the same value.so the filter met the requirements.
出处
《电子质量》
2008年第11期34-36,共3页
Electronics Quality
