| 摘要 |
PURPOSE:To compensate temperature and to reduce power consumption, by exciting two crystal oscillators at the same time with one output of two C-MOS inverters connected in series. CONSTITUTION:A C-MOS inverter at the power supply side comprising a P- channel MOSFET Tp1 and an N-channel MOSFET TN1, and a C-MOS inverter at the ground side comprising a P-channel MOSFET Tp2 and an N-channel MOSFET TN2 are connected in series, and crystal oscillators Q1, Q2 having opposite temperature characteristics are connected in parallel with the output of the inverter at the ground side and excited at the same time. Thus, the electric charges flowing out of the power supply are those charged and discharged with the voltage corresponding to changed voltage of the output voltage V0 for an electrostatic capacity Cd1 at each wave of the oscillation, and the power consumption is reduced. |
