Abstract:

This paper puts forward the measurement of quartz crystal unit in π network,which uses ARM chip STM32F103ZET6 as the MCU to control DDS in order to generate the stimulus signals.This measurement unit is simpler in structure and operation than the traditional PC measurement unit,and is more abundant in resources and faster than the ordinary SCM measurement unit.The DDS chip AD9852 will generate the signal of 0~100 MHz sweep sine signal in the control of ARM,and by analyzing the data of measurement we can come to the conclusion that the precision of the signal is up to  0.5×10^-6,which meets the design requirements.This unit may find widely applications due to the advantage of  being compact,fast,and easy in operation.

Key words: quartz crystal;DDS;AD9852;STM32F103ZET6