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公开(公告)号：EP0741452B1
公开(公告)日：2003-04-16
申请号：EP96101202.8
申请日：1996-01-29
申请人： FUJITSU LIMITED
IPC分类号： H03H11/24
CPC分类号： H03H11/245
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公开(公告)号：EP0741452A3
公开(公告)日：1997-01-15
申请号：EP96101202.8
申请日：1996-01-29
申请人： FUJITSU LIMITED
IPC分类号： H03H11/24
CPC分类号： H03H11/245
摘要： An attenuator unit (100) for attenuating a signal, the unit includes a π-type attenuator having a first resistor (106) and second and third resistors (108, 110) which are arranged on both sides of the first resistor, a first transistor (102) connected in parallel with the first resistor, and a second transistor (104) connected between a joint node of the second resistor and the third resistor and a first voltage level (112). In the unit, by controlling a gate voltage of the first transistor and a gate voltage of the second transistor, an attenuation value of the attenuator unit is changed.
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3.发明公开Attenuator unit, step attenuator, and electronic apparatus 失效Dämpfungseinheit，Stufendämpfungsvorrichtungund elektronischesGerät
公开(公告)号：EP0741452A2
公开(公告)日：1996-11-06
申请号：EP96101202.8
申请日：1996-01-29
申请人： FUJITSU LIMITED
IPC分类号： H03H11/24
CPC分类号： H03H11/245
摘要： An attenuator unit (100) for attenuating a signal, the unit includes a π-type attenuator having a first resistor (106) and second and third resistors (108, 110) which are arranged on both sides of the first resistor, a first transistor (102) connected in parallel with the first resistor, and a second transistor (104) connected between a joint node of the second resistor and the third resistor and a first voltage level (112). In the unit, by controlling a gate voltage of the first transistor and a gate voltage of the second transistor, an attenuation value of the attenuator unit is changed.
摘要翻译： 一种用于衰减信号的衰减器单元（100），该单元包括具有布置在第一电阻器两侧的第一电阻器（106）和第二和第三电阻器（108,110）的pi型衰减器，第一晶体管 （102）和连接在所述第二电阻器的接头节点和所述第三电阻器之间的第二晶体管（104）和第一电压电平（112）。 在该单元中，通过控制第一晶体管的栅极电压和第二晶体管的栅极电压，改变衰减器单元的衰减值。
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