CMOS gate voltage-controlled oscillator circuit

Published:2011/8/6 3:26:00 Author:nelly | Keyword: CMOS, gate, voltage-controlled, oscillator | From:SeekIC

As it is shown in the figure, two non-gates A1 and A2 form the self-excited multivibrator. The oscillation frequency of the circuit will change with the size of the control voltage. When the value of Vcc is closed to the threshold, its influence to RC’s charge and discharge is the smallest, so the oscillation will be the lowest. When the Vcc is far from the threshold, the discharge and charge of the capacitor will be faster, so the oscillation will be higher.



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