使用STC89C51做的模拟DDS，频率可调的音频信号发生器\hex_ps\DDS-8051频率信号发生器.DSN
.................................................\......\DDS-8051频率信号发生器.PWI
.................................................\......\IPS1.hex
.................................................\......\Last Loaded DDS-8051频率信号发生器.DBK
.................................................\......\LISA1.SDF
.................................................\hex_ps
使用STC89C51做的模拟DDS，频率可调的音频信号发生器