INTERFACE SYSTEM FOR A COG APPLICATION

摘要

The present invention relates to a current-driven sending unit and receiving unit for transmitting data in the form of a current between semiconductor chips through a transmission line. The invention also relates to an interface system for a COG application using the same. More specifically, the invention relates to: a current-driven sending unit using an independent current signal able to maintain a constant size of current applied to a transmission line without being affected by the design of the current source or process-based factors, by using the difference between a positive data current and a negative data current, without any external current, to independently generate and transmit a differential current showing the logic state of data to be transmitted; a current-driven receiving unit using an independent current signal able to reduce true line and bar line error by simultaneously converting differences in the level of the current received through the transmission line into voltage levels in a single IV converter; and an interface system for a COG application able to use the sending unit and the receiving unit to reduce distortion of the transmission signal.