Patent ID: 8816727
Filing Date: 2014-08-26
Classification: G06F,G09G,H03K,H03L,H04L

Abstract:
1. A line driver circuit for a High Definition Multimedia Interface transmitter, the line driver circuit comprising: a pre-driver circuit having a pair of pre-driver differential inputs and a pair of pre-driver differential outputs, a driver circuit, having a pair of driver differential inputs and a pair of driver differential outputs, wherein each of the pair of pre-driver differential outputs is coupled to a respective one of the pair of driver differential inputs, each of the pair of driver differential outputs is coupled to a respective one of a pair of output terminals, and the pre-driver further comprises a pair of pre-driver cascode transistors, each of the pre-driver cascode transistors being arranged between one of the pre-driver differential outputs and a respective one of the output terminals and wherein the driver circuit and the pre-driver circuit are operable to receive a current supplied by a HDMI receiver coupled to the pair of output terminals.