描述了基于CSA(Current Steer Amplifier)架构的压控振荡(VCO)的锁相环设计和仿真.电路设计基于.25μmCMOS工艺.SPICE仿真结果显示,锁相环在2.5V外加电源电压时,工耗为12.5mW,锁相环锁定时间大约400ns.
A phase locked loop(PLL) based on VCO with CSA is described. The circuit design is realized in 0.25μm CMOS technology. SPICE simulation with a 2.5 V supply voltage shows that the power consumption is 12.5 mW, and the lock time of the PLL is about 400 ns.