公开(公告)号：US08731099B2

公开(公告)日：2014-05-20

申请号：US13230614

申请日：2011-09-12

申请人： Vito Giannini ,  Tomohiro Sano ,  Mark Ingels ,  Jan Craninckx

发明人： Vito Giannini ,  Tomohiro Sano ,  Mark Ingels ,  Jan Craninckx

IPC分类号： H04B1/02

CPC分类号： H04B1/0475 ,  H03F1/02 ,  H03F3/24 ,  H04B2001/045

摘要： Transmitter circuits for generating baseband signals having low receiver-band noise are disclosed. In one embodiment, the transmitter circuit comprises an active filtering-and-amplifying component comprising a first input configured to receive a first input signal, and a first output configured to output a first output signal. The transmitter circuit further comprises a passive filtering component comprising a second input connected to the first output and configured to receive the first output signal, a passive pole arrangement comprising a number of switchable resistance elements and a capacitance element connected across the plurality of switchable resistance elements, and a second output configured to output a second output signal having reduced noise as compared to the first output signal. The transmitter still further comprises a number of feedback loops connecting the passive filtering component to the first input.

摘要翻译： 公开了用于产生具有低接收机频带噪声的基带信号的发射机电路。 在一个实施例中，发射机电路包括有源滤波和放大组件，其包括被配置为接收第一输入信号的第一输入和被配置为输出第一输出信号的第一输出。 发射机电路还包括无源滤波部件，该无源滤波部件包括连接到第一输出并被配置为接收第一输出信号的第二输入端，包括多个可切换电阻元件的无源极配置和跨越多个可切换电阻元件连接的电容元件 以及第二输出，被配置为输出与第一输出信号相比具有降低的噪声的第二输出信号。 发射机还包括将无源滤波组件连接到第一输入端的多个反馈回路。

公开(公告)号：US20120063496A1

公开(公告)日：2012-03-15

申请号：US13230614

申请日：2011-09-12

申请人： Vito Giannini ,  Tomohiro Sano ,  Mark Ingels ,  Jan Craninckx

发明人： Vito Giannini ,  Tomohiro Sano ,  Mark Ingels ,  Jan Craninckx

IPC分类号： H04L25/08 ,  H04B1/40

CPC分类号： H04B1/0475 ,  H03F1/02 ,  H03F3/24 ,  H04B2001/045

摘要： Transmitter circuits for generating baseband signals having low receiver-band noise are disclosed. In one embodiment, the transmitter circuit comprises an active filtering-and-amplifying component comprising a first input configured to receive a first input signal, and a first output configured to output a first output signal. The transmitter circuit further comprises a passive filtering component comprising a second input connected to the first output and configured to receive the first output signal, a passive pole arrangement comprising a number of switchable resistance elements and a capacitance element connected across the plurality of switchable resistance elements, and a second output configured to output a second output signal having reduced noise as compared to the first output signal. The transmitter still further comprises a number of feedback loops connecting the passive filtering component to the first input.

摘要翻译： 公开了用于产生具有低接收机频带噪声的基带信号的发射机电路。 在一个实施例中，发射机电路包括有源滤波和放大组件，其包括被配置为接收第一输入信号的第一输入和被配置为输出第一输出信号的第一输出。 发射机电路还包括无源滤波部件，该无源滤波部件包括连接到第一输出并被配置为接收第一输出信号的第二输入端，包括多个可切换电阻元件的无源极配置和跨越多个可切换电阻元件连接的电容元件 以及第二输出，被配置为输出与第一输出信号相比具有降低的噪声的第二输出信号。 发射机还包括将无源滤波组件连接到第一输入端的多个反馈回路。