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    • 10. 发明授权
    • Differential transmitter circuit
    • 差分发射电路
    • US07512183B2
    • 2009-03-31
    • US11086718
    • 2005-03-22
    • Anand HaridassBao G. TruongJoel D. Ziegelbein
    • Anand HaridassBao G. TruongJoel D. Ziegelbein
    • H04B3/00
    • H04L25/0274H03F3/45197H03F2200/543H03F2203/45488
    • A driver circuit is configured as a frequency compensated differential amplifier having one input coupled to a first data signal and a second input coupled to a second data signal. Each stage of the differential amplifier is biased with a current source. The driver circuit generates a first output signal coupled to the input of a first transmission line and a second output signal coupled to the input of a second transmission line. The first and second output signals are generated as the difference between the first and second data signals amplified by a compensated gain. A compensation network that attenuates the low frequency components of the input signals relative to the high frequency components is coupled between current sources biasing the differential amplifier. The outputs of the first and second transmission lines are coupled to the inputs of a differential receiver that may or may not be frequency compensated.
    • 驱动器电路被配置为具有耦合到第一数据信号的一个输入和耦合到第二数据信号的第二输入的频率补偿差分放大器。 差分放大器的每个级都用电流源偏置。 驱动器电路产生耦合到第一传输线的输入的第一输出信号和耦合到第二传输线的输入的第二输出信号。 第一和第二输出信号被产生为由补偿增益放大的第一和第二数据信号之间的差。 相对于高频分量衰减输入信号的低频分量的补偿网络耦合在偏置差分放大器的电流源之间。 第一和第二传输线的输出耦合到差分接收机的输入端,该差分接收机可以被频率补偿也可以不被频率补偿。