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1. 发明申请

US20050057275A1 ADAPTIVE IMPEDANCE OUTPUT DRIVER CIRCUIT 有权
标题翻译：自适应阻抗输出驱动电路
公开(公告)号：US20050057275A1
公开(公告)日：2005-03-17
申请号：US10662204
申请日：2003-09-12
申请人： Huy Ngyuen , Chanh Tran
发明人： Huy Ngyuen , Chanh Tran
IPC分类号： H03K19/00 , H03K19/003
CPC分类号： H03K19/00384 , H03K19/0005
摘要： Disclosed is an output driver having an output port for outputting a data signal, a level shifter for driving a current to the output port in response to a current control input, an adjustable impedance controller for generating an impedance adjustment signal; an output impedance compensator for adjusting the impedance of the level shifter in accordance with the impedance adjustment signal and in accordance with a reference voltage, and a tracking circuit, including a process and temperature monitor responsive to manufacturing process and temperature variations of the output driver, a frequency monitor responsive to the frequency of an input clock signal, and a voltage supply monitor responsive to an internal power supply voltage. The process and temperature monitor, frequency monitor and voltage supply monitor are interconnected so as to generate the reference voltage.
摘要翻译：公开了一种输出驱动器，具有用于输出数据信号的输出端口，用于响应于电流控制输入将电流驱动到输出端口的电平移位器，用于产生阻抗调整信号的可调阻抗控制器; 输出阻抗补偿器，用于根据阻抗调整信号并根据参考电压调整电平移位器的阻抗;以及跟踪电路，包括响应于制造过程和输出驱动器的温度变化的过程和温度监视器，响应于输入时钟信号的频率的频率监视器和响应于内部电源电压的电压供应监视器。过程和温度监视器，频率监视器和电压监视器互连，以产生参考电压。

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