集成电荷泵锁相环的接收芯片工作在ISM频段:290~470MHz,采用AMS0.8μmBiCMOS工艺,npn管的特征频率为12GHz,横向pnp的特征频率为650MHz。锁相环中鉴频鉴相器和电荷泵的设计方案基本消除了死区。压控振荡器采用LC负阻结构,中心振荡频率为433MHz,调谐范围为290~520MHz,频偏为100kHz时的相位噪声约为-98dBC/Hz.分频器采用堆叠式结构以降低功耗,PLL在5V的工作电压下功耗仅为1.4mA。 Integrated charge pump phase-locked loop receiver chip work in the ISM band: 290 ~ 470MHz, AMS0.8μmBiCMOS process, npn tube characteristic frequency of 12GHz, horizontal pnp characteristic frequency of 650MHz. Phase-locked loop in the phase-frequency detector and the design of the charge pump basically eliminates the dead zone. Voltage-controlled oscillator LC negative resistance structure, the center of the oscillation frequency of 433MHz, the tuning range of 290 ~ 520MHz, frequency offset of about 100kHz when the phase noise of about -98dBC / Hz. Dividers stacked structure to reduce power consumption, The PLL consumes only 1.4mA at 5V of operating voltage.