LVDS WITH IDLE STATE

摘要

A low voltage differential signaling generating circuit, which comprises a current source a pair of output nodes for providing a differential signal by virtue of a voltage difference therebetween, first and second differential switch circuitries and a bypass circuitry. The first differential switch circuitry selectively connects the current source to the first output node based on a control signal to cause a current flow from the first output node to the second one. The second differential switch circuitry selectively connects the current source to the second output node based on the control signal to cause a current flow from the second output node to the first one. The bypass circuitry is arranged in parallel to the first and second differential switch circuitries and is selectively switched based on an idle mode signal to prevent a current between the output nodes.

主权项

1. A low voltage differential signaling generating circuit, comprising:
at least one current source, a pair of output nodes for providing a differential signal by virtue of a voltage difference between the pair of output nodes; a first differential switch circuitry configured to be switched based on a control signal to selectively connect the current source to a first one of the pair of output nodes to cause a current flow from the first output note to the second output node; a second differential switch circuitry configured to be switched based on the control signal to selectively connect the current source to the second output node to cause a current flow from the second output note to the first output node; and a bypass circuitry arranged in parallel to the first and second differential switch circuitries and configured to be selectively switched based on an idle mode signal to prevent a current between the pair of output nodes a feedback circuitry configured to generate a control signal for adjusting the current flow supplied by the at least one current source on the basis of a voltage at the bypass circuitry, wherein the at least one current source is configured to adjust the current flow supplied thereof in accordance with the control signal.