| 摘要 |
<p>A re-referencing circuit for re-referencing a digital input signal from a first logic environment to a second logic environment includes a non-inverting circuit (210). A capacitive element (C) has a first node coupled to an input (220) of the non-inverting circuit (210) and a second node arranged to receive the digital input signal. A resistive element (214) is coupled between the input and an output of the non-inverting circuit (210). The re-referencing circuit further includes a transient correcting circuit (216) having a first input coupled to a substantially DC level (GND1) of the first logic environment, a second input coupled to a substantially DC level (GND2) of the second logic environment, and an output coupled to the input (220) of the non-inverting circuit (210). The transient correcting circuit (216) applies transient DC differences between the two environments to cancel the effects of transients in the digital input signal.</p> |
