A receiver architecture with digitally generated intermediate frequency
    1.
    发明公开
    A receiver architecture with digitally generated intermediate frequency 审中-公开
    Empfängerarchitekturmit数字erzeugter Zwischenfrequenz

    公开(公告)号:EP2088681A2

    公开(公告)日:2009-08-12

    申请号:EP09006094.8

    申请日:2005-10-12

    申请人: Maxlinear, Inc.

    IPC分类号: H04B1/30 H03D3/00 H03D7/16

    摘要: A quadrature receiver calibration apparatus, the apparatus comprising a tone generator configured to generate a calibration tone, a coupler configured to couple the calibration tone to a signal path of the quadrature receiver, a detector configured to detect an in-phase and quadrature signal component when the calibration tone is coupled to the signal path, a gain feedback module configured to adjust a gain of at least one of an in-phase signal path and a quadrature signal path; and a phase feedback module configured to adjust a phase of at least one of the in-phase signal path and the quadrature signal path.

    摘要翻译: 一种正交接收机校准装置,该装置包括被配置为产生校准音调的音调发生器,被配置为将校准音调耦合到正交接收机的信号路径的耦合器,被配置为检测同相和正交信号分量的检测器, 校准音被耦合到信号路径,增益反馈模块被配置为调整同相信号路径和正交信号路径中的至少一个的增益; 以及相位反馈模块,被配置为调整所述同相信号路径和所述正交信号路径中的至少一个的相位。