Protocol interface device based on mobile industry processor interface

The invention relates to a protocol interface device based on the mobile industry processor interface (MIPI). The device comprises a data receiving and sending module and a channel control and interface logic module used for processing the received or sent data. Especially, the data receiving and sending module comprises at least one submodule of a high speed receiving submodule, a high speed sending submodule, a low-power receiving submodule and a low-power sending submodule which are electrically connected with a differential port used for receiving/sending data, wherein the high speed receiving submodule is used to amplifying and shaping the differential signals with low power and low swing amplitude which is input to the interface device to rail to rail signals of which swing amplitude of output voltage is near or equal to the supply voltage. The low-power sending submodule is used to perform control input to the waveform of signals of the interface device, thus the time of rising edge from 15% to 85% of the total peak area in the signal waveform and the time of failing edge from 15% to 85% of trough in the signal waveform are not more than 25ns. The invention provides the realization scheme of the high speed receiving submodule and low-power sending submodule which are applicable to industrial application.