厦门莫格电气自动化有限公司销售ABBNTAI05、NTAI06欢迎来电咨询！​NTAI05、NTAI06NTAI05、NTAI06NTAI05、NTAI06您迈开询价的一小步，我还您成功的一大步。当用户需要连接一款自定义的显示屏时，就需要对E***ARC的显示接口有加更清晰的理解，下面分别说明如何使用E***ARC的三种显示接口。1、并行RGB显示小尺寸的LCD显示屏通常采用并行的RGB显示接口，典型的LCD为4.3",5.6",7"等，这些LCD的接口一般为24-bit的TTL电平数字接口，R-G-B各8位，再加上一些时序控制信号。E***ARCRGB显示接口为18-bit的TTL(3.3V)数字接口，R-G-B各6位，在实际连接时，ESAMRCRGB的每种颜色需要连接到LCD屏对应颜色的高6位，LCD屏每种颜色的低两位可直接接地。具体可参考ETA9207寸LCD转接板电路图。2、LVDS显示LVDS显示是将数字RGB信号转换为低压差分信号传送，以加强信号抗干扰能力，增加传输距离，简化硬件连接。LVDS与RGB信号的数据映射关系有SPWG和JEIDA两种标准。LVDS输出Slot0Slot1Slot2Slot3Slot4Slot5Slot6LVDS_DATA0G0R5R4R3R2R1R0LVDS_DATA1B1B0G5G4G3G2G1LVDS_DATA2DEVSHSB5B4B3B2LVDS_DATA3CTLB7B6G7G6R7R6表3SPWG数据映射关系LVDS输出Slot0Slot1Slot2Slot3Slot4Slot5Slot6LVDS_DATA0G2R7R6R5R4R3R2LVDS_DATA1B3B2G7G6G5G4G3LVDS_DATA2DEVSHSB7B6B5B4LVDS_DATA3CTLB1B0G1G0R1R0表4JEIDA数据映射关系当使用E***ARC主板RGB显示接口连接LVDS显示屏时，需要专用芯片将RGB数字信号转化为LVDS差分信号，同时必须根据LVDS显示屏使用的数据映射关系，正确的设计转换电路。TI的DS90C385A是常用的24-bitRGB转LVDS接口芯片，其数字输入端可直接与E***ARCRGB接口相连。DS90C385A支持***高87.5MHz的数据时钟，即***大可支持1280×800@50Hz左右的显示分辨率。DS90C385A的数字输入与LVDS输出对应关系如下图所示(详细说明请参考DS90C385A数据手册)：图1DS90C385A的数字输入与LVDS输出对应关系下图是利用DS90C385A实现JEIDA标准的RGB转LVDS转接电路：6ES7315-2AG10-0AB06ES7321-1FH00-0AA06ES7953-8LG20-0AA0C200H-IA222CIMR-HB4A0180DCS800-S02-0260-05+K454+控制盘DCS800-S02-0450-05+K454+控制盘HLE45-600H-3F.ACHLE45-600L-3F.AC1756-CNB1756-CNB/DLKA5BVT3006-S35/R1MPG-4RFIC693MDL753A20B-2000-0670-04D140CRA93200140CRP932001746-IB161746-OB161746-P21747-L5321756-CNBR/EPM856PM856K01LD4-LC130DSAI130DSAO120DSAO120ADSDI110ADSDO115DSDP170TB807TU810V11746-HSRVDSDP1506EW1861-2AE1203-GK1SRM50-HWA0-K011336-QOUT-SP25A1336-SN-SP16A1756-CNB/D1756-ENBT/A1794-OE12IC697CGR935A06B-6079-H1061769-OB32AK-BX556M6SE6430-2UD42-5GBODCS40-25194R-NJ100P36GK1105-2AE003401PC32000FCIMR-MR5N27P5IC3645OSC5E90811405060140CPU53414AIC3645OSC5E9194R-NJ100P3DCS-401-0405REV.A.1405AJ120-172J120-190J120-485J120-S147B1756-CNBR1756-ENBT1756-L631756-RMDC2500-CE-0A00-200-00000-00-0XBTF011310PWS6600S-S2098-DSD-010A16B-2203-0073/02AA16B-2203-0073/02A140ACI03000140ARI03010140CPS12420140CPU65160140CRA93200140DDI35310140DDO35320140XBP0100140XCP5100140XTS0020051403776-100H117AL112F16632BA16B-1212-0950DS41-30DS4600A-22201336F-B025-AE-EN1336-WB009A02B-0319-***2A249SS-120-A-G6RA7085-6DS22-0-ZZ=S00+K00INNIS21INNPM126ES7-151-1AA04-0AB01398-DDM-019IC695CPU315IC695PBM300IC695PSA0400-51378-191756-CNB1756-DNB/D1756-PA756ES7317-2EK13-0AB03503E351136253700A3805E8312A06B-0034-B0771C31194G011C31197G01TC-IDD321140ACI03000140ACO13000140ARI03010140CPS11420140CPU65150140CPU67160140CRA93200140CRP93200140DDI35300140DDO35300140NOE77101140XBP00600140XBP01000140XBP01600140XTS00200990XCP98000MA0185100MA0186100MA0329001PTQ-PDPMV1TSXBATM02TSXMRPC003MTSXMRPC007M1769-IF16C1769-OF8C531X111PSHASG3AK-BX511M2QA225M8ACS550-01-015A-4ACS550-01-08A8-4PSS30/52-500LPSS37/64-500LPST50-600-701756-DNB/A1756-ETHERNET1336-BDB-SP30D1336F-B100-AE-EN1336-QOUT-SP13AJWS600-246GK7343-1EX21-OXEO6DR5010-0NG00-0AA01756-A10/A1756-DH/RIO1756-IF161756-OF81756-PA72/B2711-B6C103805EA06B-6079-H101A06B-6079-H104A06B-6079-H203A06B-6080-H304RS2A03A0ALOWOOIMDSO14IMFEC12YB560101-EL5100MIC200PWR102FDSO14FEC12***0H-C3DR-DE140ACI04000140ARI030101756-IF16/A1792D-8BVT8D1792D-8BVTOD1794-OA8IQAE3075.010VXF53.40-166***6643-0CD01-1AX12CN3000TSX07301028P0940AXP0940CUP0940DHP0940HQDSO14FCM10EFEC12505-CODACCESS4000CIMR-JB4A00116ES7416-1XJ02-0AB0)