The voltage - controlled oscillator and the dual - modulus prescaler are the most crucial blocks in the pll frequency synthesizer . two kinds of voltage - controlled oscillator ( the quadrature voltage - controlled oscillator based on symmetrical spiral inductors and differential varactors , and the voltage - controlled oscillator with wide tuning range based on mos varactors ) and two kinds of prescaler ( the prescaler using phase - switching techniques , and the prescaler using dynamic circuit techniques ) are proposed . then , the complete pll frequency synthesizer is implemented , in which 壓控振蕩器和雙模預(yù)分頻器是鎖相環(huán)型頻率合成器中最關(guān)鍵的兩個(gè)模塊,本論文分別實(shí)現(xiàn)了兩種類型的壓控振蕩器(采用對(duì)稱螺旋型電感和差分二極管型容抗管的正交壓控振蕩器和使用mos型容抗管的大調(diào)諧范圍壓控振蕩器)和兩種類型的雙模預(yù)分頻器(使用相位開(kāi)關(guān)技術(shù)的雙模預(yù)分頻器和使用動(dòng)態(tài)電路技術(shù)的雙模預(yù)分頻器) 。