摘要
设计了一种结构新颖的动态充放电电流匹配的电荷泵电路,该电路利用一种放电电流对充电电流的跟随技术,使充放电电流达到较好匹配,同时,在电荷泵中增加差分反相器,提高电荷泵的速度。采用1stsilicon0.25滋mCMOS工艺进行仿真,结果显示:输出电压在0.3-2.2V之间变化时,电荷泵的充放电电流处处相等。
A novel architecture charge pump circuit is proposed, in which the current follow technology is used to make a perfect current matching characteristics,two differential inverters are add to increase CP speed. Simulation results with 1stsilicon 0.25?滋m process show the good current matching characteristics regardless of the charge pump output voltages.
出处
《微电子学与计算机》
CSCD
北大核心
2004年第10期169-171,共3页
Microelectronics & Computer
关键词
锁相环
电荷泵
相位误差
鉴频鉴相器
Phase locked loop, Charge pump, Phase error, Phase/frequency detector
