基于FPGA的低噪声三角波信号发生器设计

Design of Low Noise Triangular Wave Signal Generator Based on FPGA

基于XC7K325T FPGA逻辑控制和AD9783数模转换模块设计一款低噪声三角波信号发生器,输出阻抗为50Ω,电平噪声小于5 mV的低噪声三角波调制信号。实测结果表明,该发生器与专用的信号发生器相比,其输出的三角波调制信号电平噪声较低,提高了三角波信号发生器的信号质量。

Design a low noise triangular wave signal generator based on XC7K325T FPGA logic control and AD9783 analog-to-digital conversion module.The output impedance is 50Ω,and the level noise is less than 5 mV for a low noise triangular wave modulation signal.The actual measurement results show that compared with a dedicated signal generator,the generator outputs a triangular wave modulation signal with lower level noise,which improves the signal quality of the triangular wave signal generator.