公开(公告)号：US10164576B2

公开(公告)日：2018-12-25

申请号：US15582233

申请日：2017-04-28

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Graeme Gordon MacKay ,  Lei Zhu ,  Ku He ,  Vamsikrishna Parupalli

IPC: H03F1/02 ,  H03F3/45

Abstract: In accordance with embodiments of the present disclosure, a method for power supply rejection for an amplifier may include generating a correction signal by multiplying a quantity indicative of a power supply voltage of the amplifier by a transfer function defining a response from the power supply voltage of the amplifier to an output signal of the amplifier and subtracting the correction signal from a signal within a signal path of a circuit comprising the amplifier.

公开(公告)号：US10198386B2

公开(公告)日：2019-02-05

申请号：US15051995

申请日：2016-02-24

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Robert David Rand ,  Graeme Gordon MacKay ,  Andrew James Howlett

IPC: G06F13/00 ,  G06F13/38 ,  G06F13/12 ,  G06F13/40

Abstract: This application relates to methods and apparatus for transfer of data between a host device (400) and a peripheral device (300) via a USB Type-C connector (100; 304) of the host device. A data controller is described that has a path controller (309, 310; 706) for establishing signal paths between circuitry of the host device and contacts (101) of said USB Type-C connector. The path controller is operable in at least first and second modes. In the first mode the path controller establishes separate signal paths to each of at least first, second, third and fourth contacts (A6, A7, B6, B7) of the USB Type-C connector and a plurality of the established signal paths are for transfer of analog audio data. In the second mode the path controller establishes a pair of signal paths to only a subset of said first to fourth contacts to provide a differential digital data path.

公开(公告)号：US20160246747A1

公开(公告)日：2016-08-25

申请号：US15051995

申请日：2016-02-24

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Robert David Rand ,  Graeme Gordon MacKay ,  Andrew James Howlett

IPC: G06F13/38 ,  G06F13/40 ,  G06F13/12

CPC classification number: G06F13/385 ,  G06F13/122 ,  G06F13/382 ,  G06F13/4022

Abstract: This application relates to methods and apparatus for transfer of data between a host device (400) and a peripheral device (300) via a USB Type-C connector (100; 304) of the host device. A data controller is described that has a path controller (309, 310; 706) for establishing signal paths between circuitry of the host device and contacts (101) of said USB Type-C connector. The path controller is operable in at least first and second modes. In the first mode the path controller establishes separate signal paths to each of at least first, second, third and fourth contacts (A6, A7, B6, B7) of the USB Type-C connector and a plurality of the established signal paths are for transfer of analogue audio data. In the second mode the path controller establishes a pair of signal paths to only a subset of said first to fourth contacts to provide a differential digital data path.

Abstract translation: 本申请涉及通过主机设备的USB Type-C连接器（100; 304）在主机设备（400）和外围设备（300）之间传输数据的方法和装置。 描述了一种数据控制器，其具有用于在主机设备的电路和所述USB C型连接器的触点（101）之间建立信号路径的路径控制器（309,310; 706）。 路径控制器可在至少第一和第二模式中操作。 在第一模式中，路径控制器为USB C型连接器的至少第一，第二，第三和第四触点（A6，A7，B6，B7）中的每一个建立单独的信号路径，并且多个建立的信号路径用于 传输模拟音频数据。 在第二模式中，路径控制器仅建立到所述第一至第四触点的子集的一对信号路径，以提供差分数字数据路径。