Invention Grant
US09106244B2 Localized dynamic element matching and dynamic noise scaling in digital-to-analog converters (DACs)
有权
数模转换器(DAC)中的局部动态元件匹配和动态噪声缩放
- Patent Title: Localized dynamic element matching and dynamic noise scaling in digital-to-analog converters (DACs)
- Patent Title (中): 数模转换器(DAC)中的局部动态元件匹配和动态噪声缩放
-
Application No.: US14458439Application Date: 2014-08-13
-
Publication No.: US09106244B2Publication Date: 2015-08-11
- Inventor: Jianyu Zhu
- Applicant: MaxLinear, Inc.
- Applicant Address: US CA Carlsbad
- Assignee: MAXLINEAR, INC.
- Current Assignee: MAXLINEAR, INC.
- Current Assignee Address: US CA Carlsbad
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H03M1/06
- IPC: H03M1/06 ; H03M1/74

Abstract:
Methods and systems are provided for using localized dynamic element matching (DEM) and/or dynamic noise scaling (DNS) in digital-to-analog converters (DACs). Adaptive (localized) DEM may be applied in a DAC, by selecting one or more of a plurality DAC elements in the DAC, forcing the selected one or more of the plurality of DAC elements not to switch during digital-to-analog conversions, and scrambling remaining one or more of plurality of DAC elements when generating an output of the DAC. The adaptive DEM may be applied when the DAC input is backed off from full-scale. DNS may be applied in a DAC, by adaptively selecting one or more of a plurality DAC elements in the DAC and switching off the selected one or more of the plurality DAC elements such that the selected one or more of the plurality DAC elements do not contribute to generating an output of the DAC.
Public/Granted literature
- US20150048959A1 LOCALIZED DYNAMIC ELEMENT MATCHING AND DYNAMIC NOISE SCALING IN DIGITAL-TO-ANALOG CONVERTERS (DACS) Public/Granted day:2015-02-19
Information query