CAJ | 학술논문

介绍了一个针对全球定位系统接收机的全集成差分LC压控振荡器设计.该设计采用互补交叉耦合晶体管对结构,去掉了尾电流源以消除其热噪声对相位噪声的影响.考虑到低功耗低相位噪声表现,文中给出设计步骤.该设计经台积电0.18 μm射频CMOS工艺进行流片验证.在1.5 V的供电电压下,VCO振荡于3.14 GHz,仅消耗1.2 mA.在频偏600 kHz和1 MHz的情况下,其相位噪声分别为-113 dBc/Hz和-118 dBc/Hz.
개소료일개침대전구정위계통접수궤적전집성차분LC압공진탕기설계.해설계채용호보교차우합정체관대결구,거도료미전류원이소제기열조성대상위조성적영향.고필도저공모저상위조성표현,문중급출설계보취.해설계경태적전0.18 μm사빈CMOS공예진행류편험증.재1.5 V적공전전압하,VCO진탕우3.14 GHz,부소모1.2 mA.재빈편600 kHz화1 MHz적정황하,기상위조성분별위-113 dBc/Hz화-118 dBc/Hz.
This paper describes a fully integrated differential LC VCO optimal design for Global Positioning System(GPS)application.The VC0 adopts a topology which implements complementary MOS crosS-coupied pairs with LC tank and discarding the tail current source.Considering low-power low-phase noise performance,design procedures are illustrated in this paper.Fabricated in 0.18"m TSMC RFCMOS technol-ogy,the VCO oscillates at 3.14 GHz,it consumes only 1.2 mA at 1.5 V power supply voltage.It features a phase noise of-11 3 dBc/Hz and-118 dBc/Hz at 600 kHz and 1 MHz frequency offset respectivelv.