公开(公告)号：US20050212570A1

公开(公告)日：2005-09-29

申请号：US10807852

申请日：2004-03-24

申请人： Lizhong Sun ,  Bruce Signore ,  Axel Thomsen ,  Douglas Pastorello

发明人： Lizhong Sun ,  Bruce Signore ,  Axel Thomsen ,  Douglas Pastorello

IPC分类号： H03K21/08 ,  H03K21/40 ,  H03K23/66

CPC分类号： H03K21/40 ,  H03K21/08 ,  H03K23/667

摘要： A divider is disclosed herein. The divider includes a sequence of divide stages programmably coupled to provide a variety of divide ratios. The divider also includes one or more multiplexers to feedback the output of a divide stage to the input of a divide stage earlier in the sequence of divide stages. The divider may also include duty cycle correction circuitry and self correction logic to correct abnormal logic states. The divide stages can operate in synchronism with each other. Multiplexer functionality, self correction circuitry functionality, and divide stage functionality may be implemented in a combination latch circuit.

摘要翻译： 本文公开了一种分频器。 分频器包括可编程地耦合以提供各种分频比的分频级序列。 分频器还包括一个或多个多路复用器，用于将分频级的输出反馈到除法级序列之前的分频级的输入端。 分频器还可以包括占空比校正电路和用于校正异常逻辑状态的自校正逻辑。 分级阶段可以相互同步运行。 多路复用器功能，自校正电路功能和分频功能可以在组合锁存电路中实现。