中文摘要：

介绍了以AD9850和MAX264为核心实现截止频率连续可调的低通滤波器设计.通过AD9850为MAX264提供时钟,实现了低通滤波器截止频率及Q值可调节.实验结果证实了低通滤波器的良好特性.

英文摘要：

The paper mainly introduce the design of low-pass filer for cut-off frequency stageless selecting by using the chip of AD9850 and MAX264. Using AD9850 providing the clock to MAX264, cut-off frequency selected low-pass filer is implemented. Experimental results indicated a good performance of lowpass filter.