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    Output driver for reducing transient noise in integrated circuits
    1.
    发明授权
    Output driver for reducing transient noise in integrated circuits 失效
    用于降低集成电路瞬态噪声的输出驱动器

    公开(公告)号：US5293082A

    公开(公告)日：1994-03-08

    申请号：US71598

    申请日：1993-06-04

    申请人： Mehdi Bathaee

    发明人： Mehdi Bathaee

    IPC分类号： H03K17/16 ,  H03K4/26 ,  H03K5/01

    CPC分类号： H03K17/167

    摘要： A capacitive load is charged and/or discharged in sequential current steps, thereby rapidly changing the charge on the capacitive load. The stepwise change in load current can be effected by a plurality of parallel output driver stages each of which is much smaller, and thus generates less noise, than a single output driver stage with the same overall current carrying capacity. The output driver stages are connected to the load so as to be sequentially actuated responsive to an input signal representative of the binary state to be coupled by the output drive to the load. The input signal is connected to the respective output driver stages by predriver stages. Except for the lowest order predriver stage, each predriver stage has an enable circuit that switches on the driver stage at the desired point in the transition interval between binary states.

    摘要翻译： 电容负载以连续的电流步进充电和/或放电，从而快速改变电容性负载上的电荷。 负载电流的逐步变化可以通过多个并联输出驱动级来实现，每个并联输出驱动级比具有相同总载流容量的单个输出驱动器级小得多，因此产生较少的噪声。 输出驱动器级连接到负载，以便响应于代表二进制状态的输入信号被顺序地启动，以将输出驱动器耦合到负载。 输入信号通过预驱动级连接到相应的输出驱动级。 除了最低阶预驱动阶段之外，每个预驱动阶段都有一个使能电路，可在二进制状态之间的转换间隔内的所需点处接通驱动器级。