公开(公告)号：US20160118892A1

公开(公告)日：2016-04-28

申请号：US14889892

申请日：2014-06-02

Applicant: ST-Ericsson SA

Inventor： Philippe SIRITO-OLIVIER ,  Patrizia MILAZZO ,  Angelo NAGARI

IPC: H02M3/158 ,  H03F3/217

CPC classification number: H02M3/158 ,  H03F3/2173 ,  H03F3/2175

Abstract: A circuit comprising: —an output stage according to the invention; —a first control apparatus comprising a control stage of the first control apparatus is connected to the output stage; and, —a second control apparatus comprising a control stage of the second control apparatus is connected to the output stage; wherein, —when the control stage of the first control apparatus is connected to the output stage, the control stage of the second control apparatus is electrically disconnected from the output stage, the output stage being configured to operate in a first operating state; and, —when the control stage of the second control apparatus is connected to the output stage, the control stage of the first control apparatus is electrically disconnected from the output stage, the output stage being configured to operate in a second operating state. The output stage and the use of the output stage are also claimed.

Abstract translation: 一种电路，包括： - 根据本发明的输出级; - 包括第一控制装置的控制级的第一控制装置连接到输出级; 并且，包括所述第二控制装置的控制级的第二控制装置连接到所述输出级; 其中，当所述第一控制装置的控制级连接到所述输出级时，所述第二控制装置的所述控制级与所述输出级电断开，所述输出级被配置为在第一操作状态下操作; 以及 - 当所述第二控制装置的控制级连接到所述输出级时，所述第一控制装置的控制级与所述输出级电断开，所述输出级被配置为在第二操作状态下工作。 输出级和输出级的使用也被要求保护。

公开(公告)号：US20140185835A1

公开(公告)日：2014-07-03

申请号：US14136484

申请日：2013-12-20

Applicant: ST-Ericsson SA

Inventor： Christian FRAISSE ,  Angelo NAGARI

IPC: H04R3/00

CPC classification number: H04R3/00 ,  H03F3/2175 ,  H03F3/45968 ,  H03F2200/331 ,  H03F2200/375 ,  H03M3/384 ,  H03M3/50

Abstract: There is described Audio driver circuit comprising a main, 1-bit digital-to-analog converter, adapted to receive a 1-bit oversampled digital audio signal. Thanks to an auxiliary digital-to-analog converter which converts into the analog domain a digital offset compensation value stored in e.g. an OTP memory register 34, and to a summing and filtering arrangement, it is possible to reduce the offset cancellation granularity in order to compensate for the offset of the main digital-to-analog converter in the output signal.

Abstract translation: 描述了音频驱动器电路，其包括适用于接收1位过采样数字音频信号的主1位数模转换器。 由于辅助数模转换器，其转换成模拟域，数字偏移补偿值存储在例如数据位。 OTP存储器寄存器34，并且对于求和和滤波装置，可以减小偏移消除粒度，以便补偿主数模转换器在输出信号中的偏移。