OSCILLATION START UNIT AND OSCILLATION START METHOD

摘要

PROBLEM TO BE SOLVED: To solve the problem of a conventional oscillation start unit that has had required a long time until oscillation is stabilized after a CPU 4 outputs a control signal CM (oscillation start command) at an H level. SOLUTION: When the oscillation start command is outputted to an oscillation circuit 11, a voltage signal VCPU that is a sine wave equivalent to the oscillation signal of the oscillation circuit 11 is supplied to the oscillation circuit 11 for a period of 1.25 cycle.