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公开(公告)号:US07526264B2
公开(公告)日:2009-04-28
申请号:US11537628
申请日:2006-09-30
申请人: Keith Bargroff , Bert Fransis , Keith Rampmeier , Raducu Lazarescu , Kostas Papathanasiou , Esa Tarvainen , Tony Mellissonos , Donghai Wang
发明人: Keith Bargroff , Bert Fransis , Keith Rampmeier , Raducu Lazarescu , Kostas Papathanasiou , Esa Tarvainen , Tony Mellissonos , Donghai Wang
IPC分类号: H04B1/06
CPC分类号: H04B1/126 , H03D7/00 , H03D7/1425 , H03D7/1433 , H03D7/1458 , H03D2200/0025 , H03D2200/0043 , H03F3/19 , H03F2200/171 , H03F2200/294 , H03F2200/451 , H03G3/3036 , H04H40/90 , H04N7/102 , H04N7/20 , H04Q3/521 , H04Q2213/1302 , H04Q2213/13034 , H04Q2213/1304 , H04Q2213/1319 , H04Q2213/13322
摘要: An N×M crosspoint switch allows a signal from any one of the N inputs to be routed to one or more of the M crosspoint switch outputs. The switches within the crosspoint switch can be configured as voltage mode or current mode switches. In voltage mode switching an input to the crosspoint switch is provided to an input device, such as an amplifier, having a low output impedance. The output of the low impedance device is provided to a switch that connects the output of the low impedance device to a high input impedance device, such as a band translation device. In current mode switching, the low impedance output of the input device is connected to selectively activated high isolation transconductance devices having high input impedances. The outputs of the transconductance devices are connected to low impedance devices that operate as summing nodes.
摘要翻译: NxM交叉点开关允许来自N个输入中的任何一个的信号被路由到M个交叉点开关输出中的一个或多个。 交叉点开关中的开关可以配置为电压模式或电流模式开关。 在电压模式下,将交叉点开关的输入切换到具有低输出阻抗的输入装置,例如放大器。 低阻抗器件的输出被提供给将低阻抗器件的输出连接到高输入阻抗器件(诸如带转换器件)的开关。 在电流模式切换中,输入设备的低阻抗输出连接到具有高输入阻抗的选择性激活的高隔离跨导器件。 跨导器件的输出端连接到作为求和节点工作的低阻抗器件。