DATA RECEIVING CIRCUIT AND SEMICONDUCTOR DEVICE

摘要

A data receiving circuit that can accurately obtain a data signal corresponding to information data from a high speed high density transmitted signal, and a semiconductor device including the data receiving circuit. The amplitude of a first differential signal corresponding to a level difference between a pair of received differential signals, generated in a first differential stage, is amplified and binalized to obtain a received data signal. A second differential signal corresponding to the level difference between the received differential signals, and a third differential signal which is a phase-inverted signal of the second differential signal are generated in a second differential stage provided separately, and a current corresponding to the second differential signal and a current corresponding to the third differential signal are discharged into the respective ones of the pair of transmission lines, thereby suppressing the amplitudes of the received differential signals.

主权项

1. A data receiving circuit for obtaining a received data signal from a pair of received differential signals received through a pair of transmission lines, said data receiving circuit comprising:
a differential stage configured to generate a first differential signal corresponding to a level difference between said pair of received differential signals; a level converting and outputting stage configured to binarize a signal obtained by amplifying an amplitude of said first differential signal to output the binarized signal as said received data signal; and an equalizer configured to suppress the amplitudes of the received differential signals in a section in which the received differential signals alter slowly.