USB Type-CPINGJIEQIZISHENQIANGDADEGONGNENG，ZAIApple, Intel, GoogleDENGCHANGSHANGDEQIANGSHITUIDONGXIA，BIJIANGXUNSUYINFAYICHANGUSBJIEKOUDEGEMING，BINGJIANGJIJIYINGXIANGWOMENRICHANGSHENGHUODEFANGFANGMIANMIAN，TYPE CZUOWEIXINYIDAIWULIJIEKOUBIAOZHUN，XIANZAIHUOBANMENYIQI，JINGCHANGHUITAOLUNYIGEWENTI，USB Type-CDESHEBEIDAODISHIFOUXUYAOCCLUOJIJIANCEYUKONGZHIE-MARKXINPIAN，HAIYOUHENDUOHUOBANHUIWENDAO，WOMENSHUODETYPE-CDAIE-MARK XINPIANYOUJIUJINGSHIGESHENMEWANYI?

正方观点：如果连接一个简单的适配器，一个U盘，一个鼠标，都要带上TYPE-C芯片，是否多此一举.

反方观点：作为新一代的物理接口标准，TYPE-C要体现与众不同的高端大气上档次，必须所有的USB PD角色定义和角色切换，都通过USB TYPE-C 协议中的CC逻辑及通讯来实现.

TYPE-CDEE-MARK XINPIANSHIGESHENMEGUI

☞E-Marker芯片的使用场景
USBType-C规范定义了各类USB Type-C线缆：

QUANGONGNENGDEUSB Type-CXIANLAN：YIZHONGZHICHIUSB 2.0HEUSB3.1SHUJUCHUANSHUDEUSB Type-CDAOType-CLEIXINGDEXIANLAN

USB 2.0 Type-CXIANLAN： LIANGDUANDAIYOUUSB2.0 Type-CGONGTOUDEUSB 2.0 Type-CXIANLAN，SHIYONGYUUSB2.0

GUDINGSHIType-CXIANLAN：YIDUANDAIYOUQUANGONGNENGDEUSB Type-CGONGTOUHUOUSB2.0 Type-CGONGTOUDEGUDINGSHIType-CXIANLAN（CaptiveCable）

☞下图列出了需要带E-Marker芯片的线缆类型：

SHUNBIANSHUOYIXIA，ZAIPD3.0GUIFANZHONGSHANCHULEFSKDETONGXUNFANGSHI。YUANXIANZAIPD2.0GUIFANDINGYIDEUSB Type-CGONGTOULIANJIEUSB Type-AHUOZHEUSB Type-BYONGDAOE-MarkerDECHANGJINGBUZAICUNZAI。

USB2.0 5A线缆的Type-C公头PCB设计要点
带E-Marker芯片的USB2.0出线可以分为三类，总共六根线：

USB2.0SHUJUXIAND+/D-

Type-CTONGXUNXIANCCHEVCONN

DIANYUANJIDI，CHUANSHU5ADIANLIU

YOUXIEXIANLANBUCHUANSHUUSB2.0DESHUJU，ZHIYAOCHUANSHU5ADIANLIUJIKE。ZHEIYANGDEXIANLANDECHUXIANZHIYAOVBUS、GND、CCHEVCONNGONG4GENXIANJIKE.

☞USB2.0， 5A的Type-C公头PCB设计要点：

CAIYONGPUTONGDEFR4CAIZHIDEPCBCAILIAOJIKE，JIANYICAIYONGSICENGPCB，MANZU5ADIANLIUCHUANSHUDENGJI。NEICENGDEDIERCENGHEDISANCENGFENBIEZOUVBUSHEGND。

GENJUGONGTOUDEGUIGE，PCBHOUDUJIGONGCHAMANZUSHEJIYAOQIU

TopCENGCHUXIAN，E-MarkerXINPIANJIZURONGQIJIANJUNFANGZAIBottomDICENG。E-MarkerXINPIANJINLIANGXUANZECHICUN、GUANJIANJUDADEFENGZHUANGE-MarkerXINPIAN，RU2mm x 2mm DFN-6LFENGZHUANG。

JIANYICAIYONGGONGBANSHEJI，YEJIUSHIDAIE-MarkerDUANHEBUDAIE-MarkerDUANCAIYONGTONGYITAOPCBSHEJI，GENJUBOMJINXINGXUANHAN。

D+/D-ZOUXIANKAOLVZUKANGPIPEI，PINGXING、DENGZHANGZOUXIAN。

KONGZHIPCBDEZHANGDUHEKUANDU，TUIJIANCHICUNWEI8.4mmx 6mm

☞USB3.1线缆的Type-C公头PCB设计要点
带E-Marker芯片的USB3.1出线可以分为三类，总共16线：

USB3.1DEGAOSUSHUJUXIANTX1+/TX1-，RX1+/RX1-，TX2+/TX2-，RX2+/RX2-

USB2.0SHUJUXIAND+/D-

Type-CTONGXUNXIANCCHEVCONN

BIANDAIXINHAOSBU1/SBU2

DIANYUANJIDI

USB3.1XIANLANFENTONGZHOUXIANHESHUANGJIAOXIANLIANGZHONG，SHUANGJIAOXIANDESHIJICHUXIANSHULIANGZHISHAOSHI16GEN，TONGZHOUXIANZAISHUANGJIAOXIANDEJICHUSHANG，XUYAOZENGJIA4GENZUOYOUDEGNDCHUXIAN，YONGYUSHIXIANTONGZHOUXIANDEPINGBI.

USB3.1SHUJUBIAOZHUNCAIYONGDEGAOSULVYIJINGJINRUDAOWEIBOLINGYU，TONGGUOLIANJIEQIHEXIANLANCHUANSHURUCIGAODESULVBIXUKAOLVTONGDAODEBULIANXUXINGYINQIDESHIZHEN，WEILEJIANGSHIZHENCHENGDUBAOCHIZAIYIGEKEKONGDESHUIPING，BIAOZHUNGUIDINGLEXIANLANHELIANJIEQIDUIDEZUKANGHEHUIBOSUNHAODENGZHIBIAO。ZAICESHIXIANGMUSHANGYEBAOHANLEImpedance（TEXINGZUKANG）、Propagation Delay（CHUANSHUYANCHI）、PropagationSkew（CHUANSHUSHIZHI）、Attenuation（SHUAIJIAN）、Crosstalk（CHUANYIN）DENGCESHIXIANGMU。

☞USB3.1的Type-C公头PCB设计要点：
选用高频、高性能的PCB板材，建议采用六层PCB。少数厂家可以用4层PCB达到10GHz认证要求。建议内层的第二层和第五层分别走GND，GND，VBUS和GND。

GENJUGONGTOUDEGUIGE，PCBHOUDUJIGONGCHAMANZUSHEJIYAOQIU。

E-MarkerXINPIANJIZURONGQIJIANJUNFANGZAIBottomDICENG。E-MarkerXINPIANJINLIANGXUANZECHICUN、GUANJIANJUDADEFENGZHUANGE-MarkerXINPIAN，RU2mm x 2mm DFN-6LFENGZHUANG。

JIANYICAIYONGGONGBANSHEJI，YEJIUSHIDAIE-MarkerDUANHEBUDAIE-MarkerDUANCAIYONGTONGYITAOPCBSHEJI，GENJUBOMJINXINGXUANHAN。

GAOSUXINHAOXIANDEZOUXIANYAOFEICHANGXIAOXIN，ZOUXIANKAOLVZUKANGPIPEI，PINGXING、DENGZHANGZOUXIAN，CHONGFENKAOLVFANGCHUANRAO。JINLIANGSHAODAGUOKONG。JIANYICHAFENZUKANG85Ohm+-5Ohm。

D+/D-ZOUXIANKAOLVZUKANGPIPEI，PINGXING、DENGZHANGZOUXIAN。

KONGZHIPCBDEZHANGDUHEKUANDU。

XUYAOSHEJIXIANJIAWEIZHI，GUDINGJIEXIAN，FANGBIANJIAGONG

使用E-mark第一原则：如果您希望通过USB TYPE-C接口来提供超过5V的电压，或者是超过3A的电流，那么一定需要TYPE-C接口芯片去实现USB PD协议.

使用E-mark第二原则：如果您的设备使用5V电压，并且不超过3A的电流。那就要看设备本身的供电特性和数据传输特性，如果设备本身只往外供电，或者只接受对方供电，并且供电角色与数据传输角色为默认搭配(即供电方为HOST，用电方为Slave或者device)，那么你不需要TYPE-C芯片.

使用E-mark第三原则：这两个原则是用来判断设备上是否需要TYPE-C芯片，另外一点很受关注的C-C传输线上是否需要用到E-MARKER芯片，这个判断标准是，使用过程中，电流是否会超过3A？如果不超过，则可以不需要， A to C， B to C的线，则看是否需要实现Battery Charging协议，如果要实现，则可以使用LDR6013，带来的好处是，既能够实现充电，又能够传输数据，避免某些不遵守Battery Charging协议的适配器无法给苹果设备充电的问题

DIYI、YONGDIANFANGJIDeviceZHEIDUAN，YONGLIANGGE5.1KXIALADIANZU，FENBIELIANJIEDAOCKOUMUZUODECC1HECC2SHANG。RUGUOXUYAOPANBIECHARUFANGXIANG，ZEYONGYIGEBIJIAOQI，DUILIANGGEDIANZUSHANGDEDIANYAJINXINGBIJIAO(RUGUOSHIYOUCHULIQIDEXITONG，ZEKEYIYONGADCQUPANDUAN)，BIJIAOJIEGUOJIWEIFANGXIANG.

DIER、GONGDIANFANGHUOZHESHUOHOSTZHEIDUAN(GONGDIANDIANYAWEI5V)。YONGLIANGGE10KDESHANGLADIANZUFENBIEDUICKOUMUZUODECC1HECC2JINXINGSHANGLA。RUGUOXUYAOPANBIECHARUFANGXIANGDE，ZEYONGYIGEBIJIAOQI，DUILIANGGEDIANZUSHANGDEDIANYAJINXINGBIJIAO(RUGUOSHIYOUCHULIQIDEXITONG，ZEKEYIYONGADCQUPANDUAN)，BIJIAOJIEGUOJIWEIFANGXIANG.

DISAN、RUGUOYAOGUOUSB-IFRENZHENG，NEIME，CHULENEIZHONGZAISHIPEIQISHANGZHIJIESHENCHULAIBUKEBACHUDEUSBGONGTOUSHUCHUXIANZHIZHIWAI，QITADFPYINGYONGDOUGUAIGUAIDEJIASHANGUSB TYPE-CXINPIAN，RUGUOBUXUYAORENZHENG，KANZHEBANBA，TONGYANGDOUNENGGOUYONGDEQINGKUANGXIA，SHICHANGHUIJUEDINGYIQIEDE.

MUQIAN，KANDEDAODEBIXUYAOYONGTYPE-CXINPIANDEYINGYONG，BAOKUO：BIJIBENDIANNAO，SHOUJI，PINGBAN，YIDONGDIANYUAN，ZHICHIGAOYAKUAICHONGDESHIPEIQI.

YISHANGJINGONGCANKAO，TEBIESHIZONGXIANSHANG5VCHONGTUDEBUFEN，WOZHISUOYIGANTUIJIANBUYONGXINPIAN，NEISHIYINWEIJISHIYONGLE，YEHENNANBIMIANBUCHONGTU，TEBIESHILIANGGEDRP，LIANGGETRY.SRCSHEBEIXIANGLIAN，BINGQIEWAIWEICUNZAIGANRAODEQINGKUANGXIA。ZAIType-CSHIDAI，SUOYOUDESHEJI，DOUBIXUYAOYINGDUIZONGXIANSHANGDEVBUSDIANYACHONGTUDEQINGKUANG。JIRANDOUBIXUFANGCHONGTU，NEIZIRANJIUKEYIBUYONGLE.

☞附上基础知识：

■YUUSB TYPE-CWULIJIEKOUXIANGGUANDEBIAOZHUNYIGONGYOUSANGE：USB Type-C 1.1, USB PD 2.0, Battery Charging 1.2，RUGUO3GEXIEYIQUANBUZHICHI，ZEKEYISHIXIANType-CDESUOYOUYOUSHITEXING.

■Type-CBASHEBEIDEJIAOSEZAIGONGDIANHESHUJUCHUANSHUSHANGJINXINGLEFENLI，DIANNENGCHUANSHUSHANGFENWEISRC（JIGONGDIANFANG，LIRUSHIPEIQI），SNK（JISHOUDIANFANG，LIRUUPAN）.

■DUIYUJINENGGOUCHENGDANSRCJIAOSE，YOUNENGGOUCHENGDANSNKJIAOSEDESHEBEI，ZECHENGWEIDRPSHEBEI(LIRUBIJIBENDIANNAOHESHOUJI)。ZAIDRPSHEBEIZHONG.

■YOUYILEITEBIEQINGXIANGYUCHENGWEISRCSHEBEIDEDevice，CHENGWEITry.SRCSHEBEI（LIRUYIDONGDIANYUAN）.

■SHUJUCHUANSHUJIAOSESHANG，FENWEIDFP(JICHUANTONGDEHOST)HEUFP（JICHUANTONGDEDeviceHUOZHESlave）MORENQINGKUANGXIA，SRCJIWEIDFP，SNKJIWEIUFP.

■RUGUOYAOGAIBIANZHEIZHONGMORENDEDAPEI，ZEYAOSHIYONGUSB PD 2.0TONGXINXIEYIJINXINGROLE_SWAP，SUOYOUZHEIXIEJIAOSEDINGYIJIJIAOSEQIEHUAN，DOUSHITONGGUOUSB TYPE-CXIEYIZHONGDECCLUOJIJITONGXINLAISHIXIANDE.

DONGGUANLINQUANDIANZIKEJIYOUXIANGONGSICHENGLIYU2011NIAN9YUE。GONGSIZUOLUOYULISHIWENHUAMINGCHENGGUANGDONGSHENGDONGGUANSHIHUMENZHEN。ZHUYAOJINGYINGJINGMIDIANZILIANJIEQI、QICHELIANJIEQI、YILIAOQICAIDENGCHANPINDEYANFAYUZHIZAOJIMOJUSHEJIYUZHIZAO、CHONGYA、ZHUSUJILIANJIEQIZUZHUANGYITIHUAFUWU.GONGSICHENDIANLEYIPIZHUANYEHUAZISHENSHEJIYUSHENGCHANTUANDUI，YIJINGQUDELEISO 9001,ISO 14001JITS 16949ZHILIANGGUANLITIXIRENZHENG。