OSCILLATOR INCLUDING VARACTOR CIRCUIT AND METHOD OF OPERATION THEREOF

• Main Authors: JUNG HYUNG-JUN, KIM KANG-JIK, SONG GYEONGSEOK, SEONG CHANG-KYUNG
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2019
• Subjects: AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY

An oscillator and method for operation of the oscillator are provided. The oscillator includes a control voltage generator configured to generate a control voltage based on dividing a power voltage that was received, an offset voltage generator configured to generate an offset voltage based on dividing the power voltage that was received, a phase locked loop (PLL) including a varactor circuit configured to modify a capacitance based on the control voltage and the offset voltage, and a calibration logic circuit configured to provide a selection control signal to the control voltage generator based on the oscillation signal, and configured to provide an offset control signal to the offset voltage generator based on the oscillation signal. 提供了种振荡器和用于操作振荡器的方法。该振荡器包括：控制电压发生器，被配置为基于对接收到的电源电压进行分压来生成控制电压；偏移电压发生器，被配置为基于对接收到的电源电压进行分压来生成偏移电压；锁相环(PLL)，包括变抗器电路，所述变抗器电路被配置为基于所述控制电压和所述偏移电压来修改电容；以及校准逻辑电路，被配置为基于振荡信号向所述控制电压发生器提供选择控制信号，并且被配置为基于所述振荡信号向所述偏移电压发生器提供偏移控制信号。