| 摘要 |
An oscillating section 110 comprised of feedback inverter INV 1 and a feedback resistor R 2 , and a waveform shaping section 120 including a Schmitt circuit S 1 of which transistors P 3 and N 3 respectively receive, as gate control signals, signals Gp 3 and Gn 3 generated by a stable-oscillation signal A 1 and logic elements AND 1 , OR 1 and INV 3 , respectively, and the supply of power to the waveform shaping section 120 is performed through a low pass filter 111 comprised of a resistor R 1 and a capacitor C 1 and thus a high potential power source VDD is supplied to the waveform shaping section 120 as a high potential power source VDDX.
|
