公开(公告)号：US08143917B2

公开(公告)日：2012-03-27

申请号：US12683322

申请日：2010-01-06

申请人： Young-Chan Jang ,  Kyoung-Su Lee ,  Hun-Dae Choi

发明人： Young-Chan Jang ,  Kyoung-Su Lee ,  Hun-Dae Choi

IPC分类号： H03K19/094 ,  H03L5/00

CPC分类号： H04L25/0264

摘要： A transceiver for controlling a swing width of an output voltage includes a transmitter and a receiver for receiving an output voltage of a transmitter. The transmitter includes a first signal converter that outputs changed data generated by changing a voltage level of data in response to a mode control signal for selecting a test mode or a normal mode, an output voltage control circuit for controlling a voltage level of an output node of the transmitter in response to the changed data, and a first termination circuit for supplying a changed power supply voltage generated by changing a voltage level of a power supply voltage of the output node of the transmitter, or is turned off, in response to a test mode enable signal or the changed data. The receiver includes a second termination circuit that operates as a resistor having a resistance value that varies in response to the test mode enable signal or a test mode disable signal.

摘要翻译： 用于控制输出电压的摆幅的收发器包括用于接收发射器的输出电压的发射器和接收器。 发射机包括：第一信号转换器，其响应于用于选择测试模式或正常模式的模式控制信号，输出通过改变数据的电压电平而产生的改变的数据;输出电压控制电路，用于控制输出节点的电压电平 以及第一终端电路，用于响应于所述发射机的输出节点的电源电压改变或者关闭发送器的输出节点的电源电压而产生的改变的电源电压 测试模式使能信号或更改的数据。 接收机包括第二终端电路，其作为具有响应于测试模式使能信号或测试模式禁止信号而变化的电阻值的电阻器工作。