数字频率计的设计



1、设计正弦信号发生器，峰-峰值固定4V，频率范围1HZ~10KHZ可变

2、测量并LCD（或者数码管）数显正弦信号的频率，频率相对误差控制在1

-The design of a digital frequency meter, design sinusoidal signal generator, Peak- Peak fixed 4V, the frequency range 1HZ ~ 10KHZ Variable 2, measurement and LCD (or digital control) Digital sinusoidal signal frequency, frequency relative error of 1