公开(公告)号：US08897411B2

公开(公告)日：2014-11-25

申请号：US13741994

申请日：2013-01-15

申请人： Mosaid Technologies Incorporated

发明人： Gurpreet Bhullar ,  Graham Allan

IPC分类号： H03D3/24

CPC分类号： H03L7/06 ,  H03L7/0814 ,  H03L7/0818 ,  H03L7/089 ,  H03L7/093

摘要： A delay compensation circuit for a delay locked loop which includes a main delay line having a fine delay line comprising fine delay elements and a coarse delay line comprising coarse delay elements, the main delay line being controlled by a controller, the delay compensation circuit comprising: an adjustable fine delay for modeling a coarse delay element, a counter for controlling the adjustable fine delay to a value which is substantially the same as that of a coarse delay element, a circuit for applying a representation of the system clock to the delay compensation circuit, and a circuit for applying the fine delay count from the counter to the controller for adjusting the fine delay line of the main delay line to a value which is substantially the same as that of a coarse delay element of the main delay line.

摘要翻译： 一种用于延迟锁定环路的延迟补偿电路，其包括具有精细延迟线的主延迟线，该延迟线包括精细延迟元件和包括粗延迟元件的粗延迟线，该主延迟线由控制器控制，该延迟补偿电路包括： 用于对粗略延迟元件进行建模的可调精细延迟，用于将可调节精细延迟控制为与粗略延迟元件基本相同的值的计数器，用于将系统时钟的表示应用于延迟补偿电路的电路 以及从计数器向控制器施加精细延迟计数的电路，用于将主延迟线的精细延迟线调整为与主延迟线的粗略延迟元件基本相同的值。