带校准的高速MIPI电路设计  

Design of high speed MIPI circuit with calibration

作　　者：陈阳 邓红辉[1] 陈昕宇 CHEN Yang;DENG Honghui;CHEN Xinyu(School of Electronic Science and Applied Physics,Hefei University of Technology,Hefei 230601,China)

机构地区：[1]合肥工业大学电子科学与应用物理学院,安徽合肥230601

出　　处：《合肥工业大学学报（自然科学版）》2021年第4期497-502,共6页Journal of Hefei University of Technology：Natural Science

摘　　要：文章设计了一种用于高分辨率有源矩阵有机发光二极体(active-matrix organic light-emitting diode,AMOLED)手机显示驱动芯片的移动产业处理器接口(Mobile Industry Processor Interface,MIPI)电路,基于移动电话的显示屏串行接口(Display Serial Interface,DSI)协议设计了物理层电路,对于图形数据采用高速传输,对于指令采用低速传输,这样在保证数据传输速度的同时节省了功耗;为了确保高速比较器的精度,设计了高速比较器校准模块来减小输入失调引起的误差。该电路采用UMC 80 nm的CMOS工艺,高速比较器的精度为5 mV,后仿实现了单通道1 GHz的传输速率,实现了高速高精度的设计目标。This paper designs a Mobile Industry Processor Interface(MIPI)circuit for high-resolution active-matrix organic light-emitting diode(AMOLED)mobile phone display driver chip,and designs the physical layer circuit based on Display Serial Interface(DSI)specification,that is,the graphics data is transmitted at a high speed,and the instructions are transmitted at a low speed,this also saves power while ensuring the transmission speed;in order to ensure the accuracy of the high-speed comparator,a high-speed comparator calibration module is designed to reduce the error caused by the input offset.This circuit adopts UMC 80 nm CMOS technology,the precision of high-speed comparator is 5 mV and the transmission rate of single-channel 1 GHz is realized by post-imitation,achieving high-speed and high-precision design goals.

关 键 词：移动产业处理器接口(MIPI) 高速接收电路 失调校准 串行转并行电路 有源矩阵有机发光二极体(AMOLED) 

分 类 号：TN47[电子电信—微电子学与固体电子学]