发明申请
- 专利标题: Programmable frequency divider
- 专利标题(中): 可编程分频器
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申请号: US10807852申请日: 2004-03-24
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公开(公告)号: US20050212570A1公开(公告)日: 2005-09-29
- 发明人: Lizhong Sun , Bruce Signore , Axel Thomsen , Douglas Pastorello
- 申请人: Lizhong Sun , Bruce Signore , Axel Thomsen , Douglas Pastorello
- 专利权人: Silicon Laboratories, Inc.
- 当前专利权人: Silicon Laboratories, Inc.
- 主分类号: H03K21/08
- IPC分类号: H03K21/08 ; H03K21/40 ; H03K23/66
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.
公开/授权文献
- US07113009B2 Programmable frequency divider 公开/授权日:2006-09-26
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