公开(公告)号：EP2541772A2

公开(公告)日：2013-01-02

申请号：EP12004636.2

申请日：2012-06-20

申请人： Nippon Telegraph And Telephone Corporation ,  NTT Electronics Corporation

发明人： Sano, Kimikazu ,  Fukuyama, Hiroyuki ,  Nosaka, Hideyuki ,  Nakamura, Makoto ,  Murata, Koichi ,  Tobayashi, Masatoshi ,  Tsuchiya, Eisuke

IPC分类号： H03K19/0175

CPC分类号： H03K19/017545

摘要： In a signal output circuit, an input buffer externally receives a single-phase switching instruction signal for instructing to switch a state of the output circuit to one of a shutdown disable state and a shutdown enable state, and converts and outputs the single-phase switching instruction signal into a differential switching instruction signal formed from two signals having phases opposite to each other. A generation control circuit outputs a generation control signal for controlling generation of a control voltage in the control voltage generation circuit based on the differential switching instruction signal. A control voltage generation circuit outputs the control voltage upon changing a value of the control voltage in accordance with a logic of the single-phase switching instruction signal based on the generation control signal. An output circuit externally receives a differential input signal, outputs a differential output signal upon impedance-converting the differential input signal, and switches between the shutdown disable state and the shutdown enable state of the differential input signal based on the control voltage.

摘要翻译： 在信号输出电路中，输入缓冲器从外部接收单相切换指令信号，用于指示将输出电路的状态切换到关机禁止状态和关断使能状态之一，并转换并输出单相切换 指令信号转换成由具有彼此相反相位的两个信号形成的差分切换指令信号。 一代控制电路根据差动切换指令信号，输出用于控制控制电压产生电路中的控制电压产生的发电控制信号。 控制电压产生电路根据基于生成控制信号的单相切换指令信号的逻辑改变控制电压的值来输出控制电压。 输出电路从外部接收差分输入信号，通过对差分输入信号进行阻抗转换来输出差分输出信号，并根据控制电压在差分输入信号的关断禁止状态和关断使能状态之间切换。

公开(公告)号：EP2538558B1

公开(公告)日：2016-11-09

申请号：EP12004675.0

申请日：2012-06-21

申请人： Nippon Telegraph And Telephone Corporation ,  NTT Electronics Corporation

发明人： Sano, Kimikazu ,  Fukuyama, Hiroyuki ,  Nosaka, Hideyuki ,  Nakamura, Makoto ,  Murata, Koichi ,  Tobayashi, Masatoshi ,  Inabe, Yasunobu ,  Tsuchiya, Eisuke

IPC分类号： H03G1/00

CPC分类号： H03G1/0023

公开(公告)号：EP2538558A3

公开(公告)日：2015-06-03

申请号：EP12004675.0

申请日：2012-06-21

申请人： Nippon Telegraph And Telephone Corporation ,  NTT Electronics Corporation

发明人： Sano, Kimikazu ,  Fukuyama, Hiroyuki ,  Nosaka, Hideyuki ,  Nakamura, Makoto ,  Murata, Koichi ,  Tobayashi, Masatoshi ,  Inabe, Yasunobu ,  Tsuchiya, Eisuke

IPC分类号： H03G1/00

CPC分类号： H03G1/0023

摘要： In an automatic gain control circuit, a peak detection circuit detects and outputs the peak voltage of an output signal from a variable gain circuit. An average value detection/output amplitude setting circuit detects the average value voltage of an output signal from the variable gain circuit, and outputs a voltage obtained by adding a voltage with an amplitude 1/2 a desired output amplitude of the variable gain circuit to the average value voltage. An amplification circuit controls the gain of the variable gain circuit by amplifying the difference between the output voltages of the peak detection circuit and average value detection/output amplitude setting circuit and outputting a gain control signal to the variable gain circuit. The number of base-emitter junctions of transistors on a path in the peak detection circuit from input ports which receive output signals from the variable gain circuit to an output port which outputs a voltage to the amplification circuit is equal to the number of base-emitter junctions of transistors on a path in the average value detection/output amplitude setting circuit from input ports which receive output signals from the variable gain circuit to an output port which outputs a voltage to the amplification circuit.

公开(公告)号：EP2541772B1

公开(公告)日：2015-08-12

申请号：EP12004636.2

申请日：2012-06-20

申请人： Nippon Telegraph And Telephone Corporation ,  NTT Electronics Corporation

发明人： Sano, Kimikazu ,  Fukuyama, Hiroyuki ,  Nosaka, Hideyuki ,  Nakamura, Makoto ,  Murata, Koichi ,  Tobayashi, Masatoshi ,  Tsuchiya, Eisuke

IPC分类号： H03K19/0175 ,  H01S5/062

CPC分类号： H03K19/017545

公开(公告)号：EP2541772A3

公开(公告)日：2014-05-07

申请号：EP12004636.2

申请日：2012-06-20

申请人： Nippon Telegraph And Telephone Corporation ,  NTT Electronics Corporation

发明人： Sano, Kimikazu ,  Fukuyama, Hiroyuki ,  Nosaka, Hideyuki ,  Nakamura, Makoto ,  Murata, Koichi ,  Tobayashi, Masatoshi ,  Tsuchiya, Eisuke

IPC分类号： H03K19/0175 ,  H01S5/062

CPC分类号： H03K19/017545

摘要： In a signal output circuit, an input buffer externally receives a single-phase switching instruction signal for instructing to switch a state of the output circuit to one of a shutdown disable state and a shutdown enable state, and converts and outputs the single-phase switching instruction signal into a differential switching instruction signal formed from two signals having phases opposite to each other. A generation control circuit outputs a generation control signal for controlling generation of a control voltage in the control voltage generation circuit based on the differential switching instruction signal. A control voltage generation circuit outputs the control voltage upon changing a value of the control voltage in accordance with a logic of the single-phase switching instruction signal based on the generation control signal. An output circuit externally receives a differential input signal, outputs a differential output signal upon impedance-converting the differential input signal, and switches between the shutdown disable state and the shutdown enable state of the differential input signal based on the control voltage.

公开(公告)号：EP2538558A2

公开(公告)日：2012-12-26

申请号：EP12004675.0

申请日：2012-06-21

申请人： Nippon Telegraph And Telephone Corporation ,  NTT Electronics Corporation

发明人： Sano, Kimikazu ,  Fukuyama, Hiroyuki ,  Nosaka, Hideyuki ,  Nakamura, Makoto ,  Murata, Koichi ,  Tobayashi, Masatoshi ,  Inabe, Yasunobu ,  Tsuchiya, Eisuke

IPC分类号： H03G1/00

CPC分类号： H03G1/0023

摘要： In an automatic gain control circuit, a peak detection circuit detects and outputs the peak voltage of an output signal from a variable gain circuit. An average value detection/output amplitude setting circuit detects the average value voltage of an output signal from the variable gain circuit, and outputs a voltage obtained by adding a voltage with an amplitude 1/2 a desired output amplitude of the variable gain circuit to the average value voltage. An amplification circuit controls the gain of the variable gain circuit by amplifying the difference between the output voltages of the peak detection circuit and average value detection/output amplitude setting circuit and outputting a gain control signal to the variable gain circuit. The number of base-emitter junctions of transistors on a path in the peak detection circuit from input ports which receive output signals from the variable gain circuit to an output port which outputs a voltage to the amplification circuit is equal to the number of base-emitter junctions of transistors on a path in the average value detection/output amplitude setting circuit from input ports which receive output signals from the variable gain circuit to an output port which outputs a voltage to the amplification circuit.

摘要翻译： 在自动增益控制电路中，峰值检测电路检测并输出来自可变增益电路的输出信号的峰值电压。 平均值检测/输出幅度设置电路检测来自可变增益电路的输出信号的平均值电压，并且输出通过将具有可变增益电路的期望输出幅度的1/2的电压加到 平均值电压。 放大电路通过放大峰值检测电路和平均值检测/输出幅度设置电路的输出电压之间的差值并将增益控制信号输出到可变增益电路来控制可变增益电路的增益。 峰值检测电路中的路径上的晶体管的基极 - 发射极结点从输入端口接收输出信号，所述输入端口接收来自可变增益电路的输出信号到向放大电路输出电压的输出端口，其数量等于基极 - 发射极 在平均值检测/输出幅度设置电路的路径上的晶体管从接收来自可变增益电路的输出信号的输入端口到将电压输出到放大电路的输出端口的晶体管结。