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0.18μm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。 A fully integrated differential LC voltage controlled oscillator design for a GPS receiver is introduced. The design uses a complementary cross-coupled transistor pair structure, eliminating the tail current source to eliminate the impact of its thermal noise on the phase noise. Taking into account low-power low phase noise performance, the design steps given in the article. The design of TSMC 0.18μm RF CMOS process for film verification. At a supply voltage of 1.5 V, the VCO oscillates at 3.14 GHz and consumes only 1.2 mA. At 600 kHz and 1 MHz frequency offsets, the phase noise is -113 dBc / Hz and -118 dBc / Hz, respectively.