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21.发明申请公开(公告)号：US20180091164A1
公开(公告)日：2018-03-29
申请号：US15681857
申请日：2017-08-21
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu
CPC classification number: H03M1/08 , H03M1/0617 , H03M1/066 , H03M1/66 , 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.
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公开(公告)号：US20180062663A1
公开(公告)日：2018-03-01
申请号：US15790343
申请日：2017-10-23
Applicant: MaxLinear, Inc.
Inventor： Gaurav Chandra , Tao Zeng , Shantha Murthy Prem Swaroop , Jianyu Zhu
CPC classification number: H03M1/0624 , H03M1/66
Abstract: Systems and methods are provided for adaptive configuration and control of digital-to-analog converters (DACs). Performance of a plurality of conversion elements in a digital-to-analog converter (DAC) may be assessed based on particular input conditions associated with a digital input to the DAC, and the DAC may be configured based on the assessing of performance. Each conversion element of the plurality of conversion elements handles a particular bit in the digital input. The configuring may comprise selecting a subset of the plurality of conversion elements, and setting only the subset of the plurality of conversion elements to apply a particular type of operations. The particular type of operations pertains to applying digital-to-analog conversions via the DAC, and the particular type of operations relates to or affects performance. The particular input conditions may comprise signal backoff.
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公开(公告)号：US20170272089A1
公开(公告)日：2017-09-21
申请号：US15611827
申请日：2017-06-02
Applicant: Maxlinear, Inc.
Inventor： Jianyu Zhu
Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
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24.发明申请公开(公告)号：US20160308546A1
公开(公告)日：2016-10-20
申请号：US15130602
申请日：2016-04-15
Applicant: MaxLinear, Inc.
Inventor： Gaurav Chandra , Tao Zeng , Shantha Murthy Prem Swaroop , Jianyu Zhu
CPC classification number: H03M1/0624 , H03M1/66
Abstract: Systems and methods are provided for digital-to-analog converter (DAC) with partial constant switching. A digital-to-analog converter (DAC) comprising a plurality of conversion elements may be configured to apply constant switching in only some of the conversion elements. Only conversion elements applying constant switching may incorporate circuitry for providing such the constant switching. Alternatively, each conversion element may incorporate constant switching circuitry and functionality, and the constant switching may then be turned on or off for each conversion element adaptively, such as based on input conditions.
Abstract translation: 为具有局部恒定切换的数模转换器（DAC）提供了系统和方法。 包括多个转换元件的数模转换器（DAC）可以被配置为仅在一些转换元件中应用恒定切换。 仅使用恒定切换的转换元件可以包括用于提供这种恒定切换的电路。 或者，每个转换元件可以包括恒定的切换电路和功能，并且然后可以针对每个转换元件自适应地导通或关闭恒定切换，例如基于输入条件。
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25.发明申请LOCALIZED DYNAMIC ELEMENT MATCHING AND DYNAMIC NOISE SCALING IN DIGITAL-TO-ANALOG CONVERTERS (DACS) 有权数字模拟转换器（DACS）中的本地化动态元件匹配和动态噪声调节公开(公告)号：US20150349792A1
公开(公告)日：2015-12-03
申请号：US14821353
申请日：2015-08-07
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu
CPC classification number: H03M1/08 , H03M1/0617 , H03M1/066 , H03M1/66 , H03M1/74
Abstract: Methods and systems are provided for controlling operations of digital-to-analog converters (DACs), particularly ones comprising multiple DAC elements. In particular, a plurality of DAC elements in a digital-to-analog converter (DAC) may be controlled during digital-to-analog conversions, with the controlling comprising use of a switching arrangement that comprises one or more switching elements configured for controlling switching of each of the plurality of DAC elements. The controlling may comprise forcing one or more of the plurality of DAC elements in the DAC to not switch during the digital-to-analog conversions. Further, the remaining DAC elements may be scrambled. The controlling of the plurality of DAC elements in the DAC may be based on analysis of an input to the DAC that is being converted. The analysis may comprise determining when the input is backed off from full-scale. A switching sequence may be applied, via each of the one or more switching elements.
Abstract translation: 提供了用于控制数模转换器（DAC）的操作的方法和系统，特别是包括多个DAC元件的数模转换器（DAC）的操作。 特别地，在数模转换（DAC）期间可以控制数模转换器（DAC）中的多个DAC元件，其中控制包括使用包括被配置为用于控制开关的一个或多个开关元件的开关装置 的多个DAC元件中的每一个。 控制可以包括迫使DAC中的多个DAC元件中的一个或多个在数模转换期间不被切换。 此外，剩余的DAC元件可能被加扰。 DAC中的多个DAC元件的控制可以基于对正被转换的DAC的输入的分析。 分析可以包括确定输入何时从全尺寸退出。 可以通过一个或多个开关元件中的每一个施加开关序列。
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Patent Agency Ranking
公开(公告)号：US09148160B2
公开(公告)日：2015-09-29
申请号：US14455361
申请日：2014-08-08
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu
Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
Abstract translation: 为电流转向数模转换器（DAC）中的动态功率开关提供了方法和系统。 DAC电路可以被配置为基于当前转向来应用数模转换，并且特别地包括在转换期间使用动态功率切换。 DAC电路可以包括主部分，其可以将主电源电压连接到主电流源。 主部分可以包括正侧分支和负侧分支，其可以被配置为例如以差分方式转向正侧和负侧电流以实现转换。 动态功率切换可以例如通过将DAC电路中的主电流源连接到次级电源的次级部分来施加。 次级电源电压可以被配置为使得其可以小于用于驱动DAC电路中的电流转向的主电源电压。
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27.发明授权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公开(公告)号：US09106244B2
公开(公告)日：2015-08-11
申请号：US14458439
申请日：2014-08-13
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu
CPC classification number: H03M1/08 , H03M1/0617 , H03M1/066 , H03M1/66 , 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.
Abstract translation: 提供了在数模转换器（DAC）中使用局部动态元素匹配（DEM）和/或动态噪声缩放（DNS）的方法和系统。 可以通过选择DAC中的多个DAC元件中的一个或多个DAC来迫使所选择的一个或多个DAC元件在数模转换期间不切换，自适应（局部）DEM可以应用于DAC中;以及 当产生DAC的输出时，扰乱剩余一个或多个DAC元件。 当DAC输入从满量程退出时，可以应用自适应DEM。 DNS可以通过自适应地选择DAC中的多个DAC元件中的一个或多个并且关闭所选择的多个DAC元件中的一个或多个，使得所选择的一个或多个DAC元件不贡献 以产生DAC的输出。
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28.发明申请LOCALIZED DYNAMIC ELEMENT MATCHING AND DYNAMIC NOISE SCALING IN DIGITAL-TO-ANALOG CONVERTERS (DACS) 有权数字模拟转换器（DACS）中的本地化动态元件匹配和动态噪声调节公开(公告)号：US20150048959A1
公开(公告)日：2015-02-19
申请号：US14458439
申请日：2014-08-13
Applicant: MaxLinear, Inc.
Inventor： Jianyu Zhu
CPC classification number: H03M1/08 , H03M1/0617 , H03M1/066 , H03M1/66 , 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.
Abstract translation: 提供了在数模转换器（DAC）中使用局部动态元素匹配（DEM）和/或动态噪声缩放（DNS）的方法和系统。 可以通过选择DAC中的多个DAC元件中的一个或多个DAC来迫使所选择的一个或多个DAC元件在数模转换期间不切换，自适应（局部）DEM可以应用于DAC中;以及 当产生DAC的输出时，扰乱剩余一个或多个DAC元件。 当DAC输入从满量程退出时，可以应用自适应DEM。 DNS可以通过自适应地选择DAC中的多个DAC元件中的一个或多个并且关闭所选择的多个DAC元件中的一个或多个，使得所选择的一个或多个DAC元件不贡献 以产生DAC的输出。
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公开(公告)号：US10291246B2
公开(公告)日：2019-05-14
申请号：US15633157
申请日：2017-06-26
Applicant: MaxLinear, Inc.
Inventor： Gaurav Chandra , Tao Zeng , Shantha Murthy Prem Swaroop , Jianyu Zhu
Abstract: Systems and methods are provided for digital-to-analog conversions with adaptive digital offsets. A digital offset may be determined and applied to a digital input to a digital-to-analog converter (DAC), and digital-to-analog conversions are then applied via the DAC to the digital input with the digital offset. The digital offset may be set to account for one or more conditions relating to inputs to the DAC, with the one or more conditions affecting switching characteristics of one or more of a plurality of conversion elements in the DAC. The digital offset may be determined dynamically and adaptively, such as based on the input and/or conditions relating to the input. The adjustments may be selectively applied to the digital offset for particular input conditions.
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公开(公告)号：US10284215B2
公开(公告)日：2019-05-07
申请号：US15966066
申请日：2018-04-30
Applicant: Maxlinear, Inc.
Inventor： Jianyu Zhu
Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.
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