-
公开(公告)号：US20160072465A1
公开(公告)日：2016-03-10
申请号：US14481201
申请日：2014-09-09
Applicant: Cirrus Logic, Inc.
Inventor： Tejasvi Das , Xin Zhao , Ted Burk , Ku He , John L. Melanson , Xiaofan Fei
CPC classification number: H03G3/20 , H03G3/001 , H03G3/002 , H03G3/3005 , H03G3/3089
Abstract: A signal path may operate in one of a plurality of gain modes such that for each gain mode, the product of a digital gain and an analog signal gain of the signal path associated with the particular gain mode are approximately equal to a fixed path gain. During each of one or more calibration phases, a calibration system may measure analog signals at a plurality of nodes of the first path portion, calculate an actual analog gain associated with the gain mode based on the analog signals measured at the plurality of nodes, calculate an error between the fixed path gain and a mathematical product of the actual analog gain associated with the gain mode and the digital gain associated with the gain mode, and modify at least one of the digital gain and the analog gain associated with the gain mode in conformity with the error.
Abstract translation: 信号路径可以以多种增益模式之一操作，使得对于每个增益模式，与特定增益模式相关联的信号路径的数字增益和模拟信号增益的乘积近似等于固定路径增益。 在一个或多个校准阶段的每一个期间，校准系统可以测量第一路径部分的多个节点处的模拟信号，基于在多个节点处测量的模拟信号来计算与增益模式相关联的实际模拟增益，计算 固定路径增益与与增益模式相关联的实际模拟增益与与增益模式相关联的数字增益的数学乘积之间的误差，并且修改与增益模式相关联的数字增益和模拟增益中的至少一个 符合错误。
-
公开(公告)号：US09337795B2
公开(公告)日：2016-05-10
申请号：US14481201
申请日：2014-09-09
Applicant: Cirrus Logic, Inc.
Inventor： Tejasvi Das , Xin Zhao , Ted Burk , Ku He , John L. Melanson , Xiaofan Fei
CPC classification number: H03G3/20 , H03G3/001 , H03G3/002 , H03G3/3005 , H03G3/3089
Abstract: A signal path may operate in one of a plurality of gain modes such that for each gain mode, the product of a digital gain and an analog signal gain of the signal path associated with the particular gain mode are approximately equal to a fixed path gain. During each of one or more calibration phases, a calibration system may measure analog signals at a plurality of nodes of the first path portion, calculate an actual analog gain associated with the gain mode based on the analog signals measured at the plurality of nodes, calculate an error between the fixed path gain and a mathematical product of the actual analog gain associated with the gain mode and the digital gain associated with the gain mode, and modify at least one of the digital gain and the analog gain associated with the gain mode in conformity with the error.
Abstract translation: 信号路径可以以多种增益模式之一操作，使得对于每个增益模式，与特定增益模式相关联的信号路径的数字增益和模拟信号增益的乘积近似等于固定路径增益。 在一个或多个校准阶段的每一个期间，校准系统可以测量第一路径部分的多个节点处的模拟信号，基于在多个节点处测量的模拟信号来计算与增益模式相关联的实际模拟增益，计算 固定路径增益与与增益模式相关联的实际模拟增益与与增益模式相关联的数字增益的数学乘积之间的误差，并且修改与增益模式相关联的数字增益和模拟增益中的至少一个 符合错误。
-
Search Results
2
records
(took 0.012 seconds)
