基于LVDS-技术的高速数字图像传输系统

ELECTRONICMEASUREMENTTECHNOLOGY3111200811LVDS12(1.510665;2.150001):,,,LVDS,,LVDS,LVDSFPGAFPGA,,USB2.0,,,40Mpixels/s:LVDS;;FPGA:TP274.2:AHigh2speeddigitalimagetransmissionsystembasedonLVDSChenWei1SongYanxing2(1.GuangzhouHaigeCommunicationGroup,Guangzhou510665;2.SchoolofElectricalEngineeringandAutomation,Harbininstituteoftechnology,Harbin150001)Abstract:Indigitalimagetransmissionsystemandotherinterrelatedsphere,thereareenormousdataafterprocessing.Themethodofreal2timetransmissionbecomesbottleneck,buttherearemanyadvantagesofLVDSinhigh2speeddatatransmission.Sohigh2speeddigitalimagetransmissionsystembasedonLVDSisgiven,anditanalyzesthedesignofinterfacecircuitbetweenLVDSandFPGA.ThissystemconvertsparalleldataintoserialdatabyFPGA,anditcompressesserialdataintime,thenthecompresseddataissenttoPCthroughUSB2.0.Ithasmanyadvantages,suchashigh2speedandlowpowerconsumption,whichsolvetheproblemofbottleneck.Itcanbeusedinhigh2speeddatatransmissionsystemthathasmanyoutputsandatarateof40Mpixels/s.Keywords:LVDS;high2speeddigitalimagetransmission;FPGA0,,,,,[1],(LVDS),,LVDS,,LVDS[2]1LVDS1.1LVDSLVDSRS2644,2090LVDS,,,[3],PCB,LVDS655Mbps,,,LVDS1.923Gbps[4]LVDSI/O,,,,,LVDS[5],LVDS,LVDSLVDS271:LVDS11[6]1.2LVDSFPGA,TTLLVCMOS,,(),,,[7]LVDS,,,LVDS,LVDSFPGA1(a)R1,90130,,1%2%,,50,,,,1(b)1LVDSFPGA,PCB,,,,PCB,LVDS,155Mbps,,,,FPGA,:Verilog:assignrx_input_fix=rx_input;VHDL:rx_input_fix=notrx_input;22.1FPGA,CypressCMOS,12801024@450fps,,,FPGAUSB2.0,2,22.2,12801024450fps=590Mpixels/s10b,59010=5.9Gb/s,,,,,,USB2.0,USB2.0480Mbps(),,FPGA,,USBFPGAADAD8334,4,,ADAD9212,37131LVDS,8LVDS,,,33XilinxVirtex2FPGA6,:LVDS(3.3V2.5V)LVPECLBLVDSULVDSLDT,FPGAIOB,,3.3V2.5V,LVDS,(350750mV),LVDS[8]16,,LVDSFPGA,3LVDS,CMOS,LVDS640Mbps,,DSPASIC,,,1GHz,,,CMOSTTL,,,LVDS,,LVDS,,,,LVDS[1],,,.FPGA[J].,2006,29(5):1182121.[2]LVDSOwnerpsManual[S].NationalSemiconductor,2000.[3],.FPGA[J].,2006,29(6):1262128.[4],,,.LVDSI/O[J].:.2003,31(10):16218.[5],.LVDS[J].,2005,26(4):41246.[6]KEMPAINENS.LowVoltageDifferentialSignaling[J].Insight,2000,5(2):15220.[7].Xilinx[M].:,2004:2742275.[8],,.FPGACPCILVDS[J].,2007,322(3):482251.,,,FPGA,,USB,,,,,,471