Mixer circuit and method for adjusting common voltage of mixer circuit
    3.
    发明授权
    Mixer circuit and method for adjusting common voltage of mixer circuit 有权
    混频器电路和调节混频电路公共电压的方法

    公开(公告)号:US08446205B2

    公开(公告)日:2013-05-21

    申请号:US13045234

    申请日:2011-03-10

    IPC分类号: G06F7/44

    摘要: A mixer circuit includes: a mixer circuit including a first transistor pair to output a first differential input signal and a second transistor pair to output a second differential input signal by inversing the first differential signal; a local signal supply circuit to supply a pair of local signals to gates of the first transistor pair and the second transistor pair; an operational amplifier including an input pair coupled to an output pair of the mixer circuit and an output pair coupled to the input pair via feedback resistors, the operational amplifier to amplify the first differential input signal and output a differential output signal; a common mode feedback circuit to control a center voltage of the differential output signal so that the center voltage maintains a common voltage; and a common voltage generator circuit to generate the common voltage according to an amplitude of the local signal.

    摘要翻译: 一种混频器电路包括:混频器电路,包括第一晶体管对以输出第一差分输入信号和第二晶体管对,以通过反转第一差分信号输出第二差分输入信号; 本地信号供给电路,用于向第一晶体管对和第二晶体管对的栅极提供一对本地信号; 运算放大器,包括耦合到所述混频器电路的输出对的输入对和经由反馈电阻耦合到所述输入对的输出对,所述运算放大器放大所述第一差分输入信号并输出​​差分输出信号; 共模反馈电路,用于控制差分输出信号的中心电压,使得中心电压维持公共电压; 以及公共电压发生器电路,以根据本地信号的幅度产生公共电压。

    MIXER CIRCUIT AND METHOD FOR ADJUSTING COMMON VOLTAGE OF MIXER CIRCUIT
    4.
    发明申请
    MIXER CIRCUIT AND METHOD FOR ADJUSTING COMMON VOLTAGE OF MIXER CIRCUIT 有权
    用于调节混频器电路的公共电压的混频器电路和方法

    公开(公告)号:US20110241753A1

    公开(公告)日:2011-10-06

    申请号:US13045234

    申请日:2011-03-10

    IPC分类号: H03L5/00

    摘要: A mixer circuit includes: a mixer circuit including a first transistor pair to output a first differential input signal and a second transistor pair to output a second differential input signal by inversing the first differential signal; a local signal supply circuit to supply a pair of local signals to gates of the first transistor pair and the second transistor pair; an operational amplifier including an input pair coupled to an output pair of the mixer circuit and an output pair coupled to the input pair via feedback resistors, the operational amplifier to amplify the first differential input signal and output a differential output signal; a common mode feedback circuit to control a center voltage of the differential output signal so that the center voltage maintains a common voltage; and a common voltage generator circuit to generate the common voltage according to an amplitude of the local signal.

    摘要翻译: 一种混频器电路包括:混频器电路,包括第一晶体管对以输出第一差分输入信号和第二晶体管对,以通过反转第一差分信号输出第二差分输入信号; 本地信号供给电路,用于向第一晶体管对和第二晶体管对的栅极提供一对本地信号; 运算放大器,包括耦合到所述混频器电路的输出对的输入对和经由反馈电阻耦合到所述输入对的输出对,所述运算放大器放大所述第一差分输入信号并输出​​差分输出信号; 共模反馈电路,用于控制差分输出信号的中心电压,使得中心电压维持公共电压; 以及公共电压发生器电路,以根据本地信号的幅度产生公共电压。