专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06961403B1 Programmable frequency divider with symmetrical output 有权
标题翻译：具有对称输出的可编程分频器
公开(公告)号：US06961403B1
公开(公告)日：2005-11-01
申请号：US10709804
申请日：2004-05-28
申请人： John S. Austin , Matthew T. Sobel
发明人： John S. Austin , Matthew T. Sobel
IPC分类号： H03K23/64 , G11C19/00 , H03B19/00
CPC分类号： G11C19/00
摘要： A programmable frequency divider circuit with symmetrical output is disclosed. The frequency divider includes a non-symmetrical LFSR based component operated in series with a symmetrical divider component. Both the LFSR and the symmetrical divider may be programmed to provide flexibility. The frequency divider can dynamically adjust the divisor of the LFSR component to overcome limitations in the divide resolution due to the series combination of dividers, providing even and odd divisor values. The divider architecture can also provide higher level functions, including synchronization of multiple divider outputs, dynamic switching of divisor values and generation of multi-phased and spaced outputs. The linear feedback shift register (LFSR) component includes a feedback logic network decomposed into multiple stages to realize a maximum latch-to-latch operational latency of one gate delay regardless of the size of the LFSR.
摘要翻译：公开了一种具有对称输出的可编程分频器电路。分频器包括与对称分频器组件串联操作的基于非对称LFSR的组件。可以对LFSR和对称分频器进行编程以提供灵活性。分频器可以动态调整LFSR分量的除数，以克服由于分频器的串联组合造成的分频分辨率的限制，从而提供均匀和除数。分频器架构还可以提供更高级别的功能，包括多个分频器输出的同步，除数值的动态切换以及多相和间隔输出的产生。线性反馈移位寄存器（LFSR）组件包括分解成多级的反馈逻辑网络，以实现一个门延迟的最大锁存到锁存操作等待时间，而不管LFSR的大小。

IPRDB

热门服务

关于我们

友情链接

联系方式