Title: Improvement of the Oscillation Frequency Characteristic of Conventional Voltage Controlled Ring Oscillator
Abstract:A new design of a Voltage Controlled Ring Oscillator is proposed in this paper in order to improve the oscillation frequency characteristic. The structure and the operation of proposed Voltage Control...A new design of a Voltage Controlled Ring Oscillator is proposed in this paper in order to improve the oscillation frequency characteristic. The structure and the operation of proposed Voltage Controlled Ring Oscillator have been described. The new VCO is implemented and simulated by using ADS platform with 0.35μm AMS CMOS technology; this circuit uses relatively small devices dimensions and low power supply 2V to operate in a large range frequency. In addition, the proposed structure enables the output signal of the VCO to oscillates between ''0'' and ''1'' for each input value of control voltage Vinvco, varied between 0V to 1,3V, which is difficult to get from the Conventional Voltage Controlled Oscillator. Input control voltage of VCO, Vinvco, it is the analog voltage generated from the Loop Filter if a Voltage Controlled Oscillator circuit is use in Phase Locked Loops (PLLs) systems.Read More
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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Cited By Count: 1
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