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

IPC: H03M1/06 ,  H03M1/66

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.

公开(公告)号：US09698811B2

公开(公告)日：2017-07-04

申请号：US15149827

申请日：2016-05-09

Applicant: MaxLinear, Inc.

Inventor： Kaveh Moazzami ,  Pawan Tiwari ,  Gaurav Chandra

IPC: H03M1/00 ,  H03M1/12 ,  H03M1/46 ,  H03M1/08

CPC classification number: H03M1/1245 ,  H03M1/0836 ,  H03M1/12 ,  H03M1/46 ,  H03M1/468

Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.

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

IPC: H03M1/10 ,  H03M1/66

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。