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1. 发明授权

US09559697B2 Transmitter circuit and semiconductor integrated circuit 有权
标题翻译：发射机电路和半导体集成电路
公开(公告)号：US09559697B2
公开(公告)日：2017-01-31
申请号：US14843674
申请日：2015-09-02
申请人： Socionext Inc.
发明人： Shigeaki Kawai , Nobumasa Hasegawa
IPC分类号： H03K3/00 , H03K19/0185 , H03K17/687
CPC分类号： H03K19/018528 , H03K17/687 , H04L25/0272 , H04L25/028
摘要： A transmitter circuit includes: a driver that includes an output resistor set to a resistance value according to an input code, and that outputs, to an output terminal, an output signal; and a high potential side resistor and a low potential side resistor that are connected to the output terminal. The transmitter circuit further includes a high potential side current source that is set with a current value according to the input code, and a low potential side current source that is set with a current value according to the input code. The transmitter circuit further includes a high potential side switch and a low potential side switch that switch between allowing current output from the high voltage side current source and the low voltage side current source to pass, and blocking the current.
摘要翻译：发射机电路包括：驱动器，其包括根据输入代码设置为电阻值的输出电阻器，并将输出信号输出到输出端子; 以及连接到输出端子的高电位侧电阻器和低电位侧电阻器。发射机电路还包括根据输入代码设置有电流值的高电位侧电流源和根据输入代码设置为电流值的低电位侧电流源。发射机电路还包括高电压侧开关和低电位侧开关，其在允许来自高压侧电流源的电流输出和低压侧电流源之间切换，并且阻断电流。

2. 发明授权

US09628076B2 Transmission circuit and semiconductor integrated circuit 有权
公开(公告)号：US09628076B2
公开(公告)日：2017-04-18
申请号：US15136374
申请日：2016-04-22
申请人： Socionext Inc.
发明人： Nobumasa Hasegawa
IPC分类号： H03K3/00 , H03K17/687 , H03K19/0175 , H01L23/66 , H03F3/45 , H03M9/00 , H04L25/00 , H03F3/217
CPC分类号： H03K17/687 , H01L23/66 , H01L2223/6638 , H01L2223/665 , H01L2223/6655 , H03F3/2173 , H03F3/45071 , H03F3/45179 , H03F2200/453 , H03F2203/45026 , H03K19/0175 , H03K19/017545 , H03M9/00 , H04L25/00 , H04L25/0272 , H04L25/0278
摘要： A transmission circuit includes a driver circuit that includes: a transistor to regulate output impedance, and a switching circuit that is connected to the transistor to regulate output impedance and switches an output polarity for differential output; and a bias circuit that includes: a first replica circuit including another transistor corresponding to the transistor to regulate output impedance, the bias circuit generating a gate voltage so as to make a current-voltage characteristic of the transistor to regulate output impedance correspond to a first output impedance value, and supply the gate voltage to a gate of the transistor to regulate output impedance.

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