Clock Signal Generation Device, And Wireless Base Station

摘要

A wireless base station ( 11 ) includes a wireless communication unit ( 17 ) and a clock signal generation unit ( 20 ). The clock signal generation unit ( 20 ) includes a voltage-controlled oscillation unit ( 21 ) that outputs a clock signal of an oscillating frequency according to an inputted control voltage, a time information generation unit ( 22 ) that generates time information based on the clock signal, a time information comparison unit ( 23 ) that compares the time information with reference time information; and a control voltage instruction unit ( 24 ) that instructs a control voltage according to the comparison result to the voltage-controlled oscillation unit ( 21 ). Accordingly, the oscillating frequency of the clock signal can be kept easily and highly precisely.