公开(公告)号：US09214949B1

公开(公告)日：2015-12-15

申请号：US14583907

申请日：2014-12-29

Applicant: BROADCOM CORPORATION

Inventor： Jiangfeng Wu ,  Tianwei Li

IPC: H03M1/34 ,  H03M1/00 ,  H03M1/12

CPC classification number: H03M1/0624 ,  H02M3/07 ,  H03M1/12

Abstract: An Analog to Digital Converter (ADC) includes an ADC core, a first switched capacitor voltage regulator, and a second switched capacitor voltage regulator. The ADC core includes a plurality of digital components that sample an incoming signal based on an ADC clock, a first voltage, and a first ground and a plurality of analog components configured to operate using a second voltage and a second ground. The first switched capacitor voltage regulator produces the first voltage and the first ground for the plurality of digital components using a supply voltage, a supply ground, and the ADC clock. The second switched capacitor voltage regulator produces the second voltage and the second ground using the supply voltage, the supply ground, and the ADC clock. Switching of the first and second switched capacitor voltage regulators is performed using complementary and non-overlapping clocks having switching frequency that is based upon the ADC clock.

Abstract translation: 模数转换器（ADC）包括ADC内核，第一开关电容器电压调节器和第二开关电容器电压调节器。 ADC内核包括多个数字组件，其基于ADC时钟，第一电压以及第一地和多个被配置为使用第二电压和第二地进行操作的模拟组件对输入信号进行采样。 第一开关电容器电压调节器使用电源电压，电源地和ADC时钟产生用于多个数字组件的第一电压和第一接地。 第二个开关电容器电压调节器使用电源电压，电源地和ADC时钟产生第二个电压和第二个接地。 使用具有基于ADC时钟的开关频率的互补和非重叠时钟来执行第一和第二开关电容器稳压器的切换。

公开(公告)号：US08912937B2

公开(公告)日：2014-12-16

申请号：US13768713

申请日：2013-02-15

Applicant: Broadcom Corporation

Inventor： Ramon Gomez ,  Massimo Brandolini ,  Jiangfeng Wu ,  Kevin Lee Miller ,  Hans Eberhart ,  Tianwei Li

IPC: H03M1/66 ,  H03F3/19 ,  H03F3/21

CPC classification number: H03F3/21 ,  H03F1/0277 ,  H03F1/22 ,  H03F3/19 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45183 ,  H03F3/72 ,  H03F2200/516 ,  H03F2203/45496 ,  H03F2203/45656 ,  H03F2203/45731 ,  H03M1/66

Abstract: Highly power efficient transmitter output stage designs are provided. In an embodiment, the probability density function (PDF) of an input signal is divided into a plurality of regions, and samples of the input signal are processed depending on the region of the PDF within which they fall. The PDF can be divided between an inner region corresponding to samples of the input signal that are within a predetermined amplitude range, and outer regions corresponding to samples of the input signal that are outside of the predetermined amplitude range. Samples of the input signal that fall in the inner region are processed by a class A biased amplifier and samples of the input signal that fall in the outer regions are processed by a class B biased amplifier. Output stage designs according to embodiments can be implemented as power amplifiers or power digital-to-analog converters (DACs).

Abstract translation: 提供高功率发射机输出级设计。 在一个实施例中，输入信号的概率密度函数（PDF）被划分为多个区域，并且根据它们所在的PDF的区域来处理输入信号的采样。 PDF可以在对应于在预定幅度范围内的输入信号的样本的内部区域和对应于在预定幅度范围之外的输入信号的采样的外部区域之间划分。 落入内部区域的输入信号的样本由A类偏置放大器处理，落在外部区域的输入信号的采样由B类偏置放大器处理。 根据实施例的输出级设计可以被实现为功率放大器或功率数模转换器（DAC）。

公开(公告)号：US09559713B1

公开(公告)日：2017-01-31

申请号：US15057609

申请日：2016-03-01

Applicant: Broadcom Corporation

Inventor： Rong Wu ,  Tianwei Li

IPC: H03M1/00 ,  H03M1/12 ,  H03M1/06

CPC classification number: H03M1/124 ,  H03M1/1038

Abstract: An analog-to-digital converter (ADC) is used for dynamic tracking nonlinearity correction. The correction employs an analog sampling technique to determine the signal derivative by measuring the derivative current arising from sampling an analog input signal undergoing analog-to-digital conversion, at the sampling instant. The analog derivative sampling technique achieves significant reduction in power consumption with less complexity compared with a digital approach, with strong improvements in HD3, SDFR, and IM3 measures.

Abstract translation: 模拟 - 数字转换器（ADC）用于动态跟踪非线性校正。 该校正采用模拟采样技术通过在采样时刻测量由模拟输入信号进行模数转换的模拟输入信号产生的微分电流来确定信号导数。 与数字方法相比，模拟导数采样技术以较少的复杂度实现了功耗的显着降低，HD3，SDFR和IM3措施的强劲改进。

公开(公告)号：US20150009059A1

公开(公告)日：2015-01-08

申请号：US14021735

申请日：2013-09-09

Applicant: Broadcom Corporation

Inventor： Chun-Ying Chen ,  Wei-Ta Shih ,  Rong Wu ,  Young Shin ,  Karthik Raviprakash ,  Tao Wang ,  Chia-Jen Hsu ,  Tianwei Li

IPC: H03M1/12

CPC classification number: H03M1/187 ,  H03M1/00 ,  H03M1/0695 ,  H03M1/1215 ,  H03M1/144 ,  H03M1/164

Abstract: A system includes a pipeline analog-to-digital converter as a first stage to process an input signal, and a successive approximation register (SAR) analog-to-digital converter as a second stage to process the input signal. The SAR analog-to-digital converter includes a power adjustment element to adjust a reference voltage of the SAR analog-to-digital converter to match a full scale voltage of the pipeline-analog-to-digital converter.

Abstract translation: 系统包括作为处理输入信号的第一级的流水线模数转换器和用于处理输入信号的逐次逼近寄存器（SAR）模数转换器作为第二级。 SAR模数转换器包括功率调整元件，用于调整SAR模数转换器的参考电压，以匹配流水线模数转换器的满量程电压。

公开(公告)号：US09030344B2

公开(公告)日：2015-05-12

申请号：US14021735

申请日：2013-09-09

Applicant: Broadcom Corporation

Inventor： Chun-Ying Chen ,  Wei-Ta Shih ,  Rong Wu ,  Young Shin ,  Karthik Raviprakash ,  Tao Wang ,  Chia-Jen Hsu ,  Tianwei Li

IPC: H03M1/12 ,  H03M1/00 ,  H03M1/06

CPC classification number: H03M1/187 ,  H03M1/00 ,  H03M1/0695 ,  H03M1/1215 ,  H03M1/144 ,  H03M1/164

Abstract: A system includes a pipeline analog-to-digital converter as a first stage to process an input signal, and a successive approximation register (SAR) analog-to-digital converter as a second stage to process the input signal. The SAR analog-to-digital converter includes a power adjustment element to adjust a reference voltage of the SAR analog-to-digital converter to match a full scale voltage of the pipeline-analog-to-digital converter.

Abstract translation: 系统包括作为处理输入信号的第一级的流水线模数转换器和用于处理输入信号的逐次逼近寄存器（SAR）模数转换器作为第二级。 SAR模数转换器包括功率调整元件，用于调整SAR模数转换器的参考电压，以匹配流水线模数转换器的满量程电压。

公开(公告)号：US20140184339A1

公开(公告)日：2014-07-03

申请号：US13768713

申请日：2013-02-15

Applicant: BROADCOM CORPORATION

Inventor： Ramon GOMEZ ,  Massmo Brandolini ,  Jiangfeng Wu ,  Kevin Lee Miller ,  Hans Eberhart ,  Tianwei Li

IPC: H03F3/21 ,  H03F3/19 ,  H03M1/66

CPC classification number: H03F3/21 ,  H03F1/0277 ,  H03F1/22 ,  H03F3/19 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45183 ,  H03F3/72 ,  H03F2200/516 ,  H03F2203/45496 ,  H03F2203/45656 ,  H03F2203/45731 ,  H03M1/66

Abstract: Highly power efficient transmitter output stage designs are provided. In an embodiment, the probability density function (PDF) of an input signal is divided into a plurality of regions, and samples of the input signal are processed depending on the region of the PDF within which they fail. The PDF can be divided between an inner region corresponding to samples of the input signal that are within a predetermined amplitude range, and outer regions corresponding to samples of the input signal that are outside of the predetermined amplitude range. Samples of the input signal that fall in the inner region are processed by a class A biased amplifier and samples of the input signal that fall in the outer regions are processed by a class B biased amplifier. Output stage designs according to embodiments can be implemented as power amplifiers or power digital-to-analog converters (DACs).

Abstract translation: 提供高功率发射机输出级设计。 在一个实施例中，输入信号的概率密度函数（PDF）被划分为多个区域，并且根据其中它们失败的PDF的区域来处理输入信号的采样。 PDF可以在对应于在预定幅度范围内的输入信号的样本的内部区域和对应于在预定幅度范围之外的输入信号的采样的外部区域之间划分。 落入内部区域的输入信号的样本由A类偏置放大器处理，落在外部区域的输入信号的采样由B类偏置放大器处理。 根据实施例的输出级设计可以被实现为功率放大器或功率数模转换器（DAC）。