Patent ID: 7940139
Filing Date: 2011-05-10
Classification: H03K,H03L

Abstract:
1. A voltage-controlled oscillator for supplying a signal of a frequency that accords with an input voltage, comprising: a converter that converts said input voltage to a first physical quantity that accords with said input voltage; an offset adjustment unit that includes a plurality of first switches for offsetting said frequency, said offset adjustment unit generating a second physical quantity that accords with the status of each first switch; a linear adjustment unit that includes a plurality of second switches for implementing linear adjustment of the relation between said input voltage and said frequency, said linear adjustment unit, when said input voltage is contained within a prescribed voltage range for implementing linear adjustment of the relation between said input voltage and said frequency, generating a third physical quantity that accords with said input voltage and the status of each second switch; and a signal output unit that supplies a signal of a frequency that accords with said first physical quantity, said second physical quantity, and said third physical quantity.