Patent ID: 6541995
Filing Date: 2003-04-01
Classification: H03K,H04L

Abstract:
A driving circuit for providing at least one signal to a receiver device capable of operating in a plurality of signal processing modes, said circuit comprising:a first output line; a second output line; an output driver coupled to said first output line and second output line, wherein said output driver drives a first signal onto said first output line and a second signal onto said second output line; a receiver receiving at least one of said first signal and said second signal, wherein said receiver comprises one of a differential receiver and a single ended receiver such that said differential receiver receives said first signal and said second signal, and said single ended receiver receives one of said first signal and said second signal; wherein said output driver detects neither said differential receiver nor said single ended receiver; and wherein said output driver includes: a first switch for providing a first switch output signal based upon an input signal, wherein said first switch couples with a first voltage reference from a first bias circuit; a second switch for driving said first signal onto said first output line wherein said second switch is controlled by said first switch output signal coupled to a second voltage reference from a second bias circuit; and a third switch for driving said second signal onto said second output line through a load resistor wherein said third switch is controlled by said input signal.