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    Circuit and method for multi-phase alignment
    1.
    发明申请
    Circuit and method for multi-phase alignment 失效

    公开(公告)号：US20020021154A1

    公开(公告)日：2002-02-21

    申请号：US09920709

    申请日：2001-08-03

    Applicant: Broadcom Corporation

    Inventor： Frank W. Singor

    IPC: H03K003/017 ,  H03L007/00

    CPC classification number: H03K5/15 ,  G06F1/08 ,  G11C27/024

    Abstract: A method and circuit for adjusting clock pulse widths in a high speed sample and hold circuit. A single phase clock signal is input into a pulse discriminator and separated into rising and falling edges. The edges are adjusted to a desired slope. The adjusted edges and the unadjusted edges are summed and output as multiple clock signals with a desired pulse edge alignment. The clock signals control switches in a manner to reduce signal dependent sampling distortion.

    Switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current
    2.
    发明申请
    Switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current 有权
    开关电容，共模反馈电路，用于不带尾电流的差分放大器

    公开(公告)号：US20020024382A1

    公开(公告)日：2002-02-28

    申请号：US09921000

    申请日：2001-08-03

    Applicant: Broadcom Corporation

    Inventor： Tom W. Kwan ,  Ralph Duncan ,  Frank W. Singor

    IPC: H03F001/02 ,  H03F003/45

    CPC classification number: H03F3/45645 ,  H03F3/005 ,  H03F3/45179 ,  H03F3/45188 ,  H03F3/45654 ,  H03F2203/45394 ,  H03F2203/45421 ,  H03F2203/45651

    Abstract: Provided is a switched capacitor feedback circuit including two or more input ports configured to receive a corresponding a number of input signals and at least one output port. The output port is configured to output an adjusting signal. The input signals includes a number of primary signals and two or more reference signals that are associated with a first timing phase of operation. The adjusting signal is produced based upon a comparison between the primary signals the reference signals. Also provided is a pair of active devices having gates coupled together and structured to receive the adjusting signal. The active devices are configured to provide a gain to the adjusting signal in accordance with a predetermined gain factor, and facilitate an adjustment to the number of primary signals based upon the gain during a second timing phase of operation.

    Abstract translation: 提供了一种开关电容器反馈电路，其包括被配置为接收对应的多个输入信号和至少一个输出端口的两个或多个输入端口。 输出端口配置为输出调整信号。 输入信号包括与第一定时相位相关联的多个主信号和两个或更多个参考信号。 基于主信号之间的参考信号的比较产生调整信号。 还提供了一对具有耦合在一起并被构造成接收调节信号的门的有源器件。 有源器件被配置为根据预定的增益因子向调整信号提供增益，并且有助于在操作的第二定时阶段期间基于增益来调整主信号的数量。

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