| 摘要 |
A method and circuit for controlling the slope of a transitioning signal on a transmission line of integrated circuit is achieved using stepwise pulldown impedance reduction/augmentation. Over a series of sequentially ordered steps, a predetermined decreasing (or increasing) impedance is connected between the transmission line and voltage source. Using certain predetermined impedance values in order, a linear slew rate on the output signal is achievable. Adjusting the time delay between each step allows the slope of the linear slew rate to be adjusted.
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