滚球体育

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IC解密滚球体育 > 解密案例 > 有了这10大技巧 高频电路板PCB设计将事半功倍
有了这10大技巧 高频电路板PCB设计将事半功倍
编辑 :

ZHUANYEXINPIANJIEMIGONGSI

时间 : 2019-05-08 12:00 浏览量 : 2085

高频电路板PCB设计滚球体育是一个复杂的过程,涉及的因素很多,都可能直接关系到高频电路的工作性能。欣荣整理了高频电路板设计的10大技巧,希望能助你事半功倍。

电路板PCB设计

1、DUOCENGBANBUXIAN

高频电路往往集成度较高,布线密度大,采用多层板既是布线所必须,也是降低干扰的有效手段。在PCBLayout阶段,合理的选择一定层数的印制板尺寸,能充分利用中间层来设置屏蔽,更好地实现就近接地,并有效地降低寄生电感和缩短信号的传输长度,同时还能大幅度地降低信号的交叉干扰等,所有这些方法都对高频电路的可靠性有利。

滚球体育YOUZILIAOXIANSHI,TONGZHONGCAILIAOSHI,SICENGBANYAOBISHUANGMIANBANDEZAOSHENGDI20dB。DANSHI,TONGSHIYECUNZAIYIGEWENTI,PCBBANCENGSHUYUEGAO,ZHIZAOGONGYIYUEFUZA,DANWEICHENGBENYEJIUYUEGAO,ZHEIJIUYAOQIUWOMENZAIJINXINGPCBLayoutSHI,CHULEXUANZEHESHIDECENGSHUDEPCBBAN,HAIXUYAOJINXINGHELIDEYUANQIJIANBUJUGUIHUA,BINGCAIYONGZHENGQUEDEBUXIANGUIZELAIWANCHENGSHEJI。

滚球体育2、GAOSUDIANZIQIJIANGUANJIAOJIANDEYINXIANWANZHEYUESHAOYUEHAO

GAOPINDIANLUBUXIANDEYINXIANZUIHAOCAIYONGQUANZHIXIAN,XUYAOZHUANZHE,KEYONG45DUZHEXIANHUOZHEYUANHUZHUANZHE,ZHEIZHONGYAOQIUZAIDIPINDIANLUZHONGJINJINYONGYUTIGAOTONGBODEGUZHEQIANGDU,ERZAIGAOPINDIANLUZHONG,MANZUZHEIYIYAOQIUQUEKEYIJIANSHAOGAOPINXINHAODUIWAIDEFASHEHEXIANGHUJIANDEOUHE。

3、GAOPINDIANLUQIJIANGUANJIAOJIANDEYINXIANYUEDUANYUEHAO

XINHAODEFUSHEQIANGDUSHIHEXINHAOXIANDEZOUXIANZHANGDUCHENGZHENGBIDE,GAOPINDEXINHAOYINXIANYUEZHANG,TAJIUYUERONGYIOUHEDAOKAOJINTADEYUANQIJIANSHANGQU,SUOYIDUIYUZHURUXINHAODESHIZHONG、JINGZHEN、DDRDESHUJU、LVDSXIAN、USBXIAN、HDMIXIANDENGGAOPINXINHAOXIANDOUSHIYAOQIUJINKENENGDEZOUXIANYUEDUANYUEHAO。

4、GAOPINDIANLUQIJIANGUANJIAOJIANDEYINXIANCENGJIANJIAOTIYUESHAOYUEHAO

SUOWEI“YINXIANDECENGJIANJIAOTIYUESHAOYUEHAO”SHIZHIYUANJIANLIANJIEGUOCHENGZHONGSUOYONGDEGUOKONG(Via)YUESHAOYUEHAO。JUCE,YIGEGUOKONGKEDAILAIYUE0.5pFDEFENBUDIANRONG,JIANSHAOGUOKONGSHUNENGXIANZHUTIGAOSUDUHEJIANSHAOSHUJUCHUCUODEKENENGXING。

滚球体育5、ZHUYIXINHAOXIANJINJULIPINGXINGZOUXIANYINRUDE“CHUANRAO”

GAOPINDIANLUBUXIANYAOZHUYIXINHAOXIANJINJULIPINGXINGZOUXIANSUOYINRUDE“CHUANRAO”,CHUANRAOSHIZHIMEIYOUZHIJIELIANJIEDEXINHAOXIANZHIJIANDEOUHEXIANXIANG。

滚球体育YOUYUGAOPINXINHAOYANZHECHUANSHUXIANSHIYIDIANCIBODEXINGSHICHUANSHUDE,XINHAOXIANHUIQIDAOTIANXIANDEZUOYONG,DIANCICHANGDENENGLIANGHUIZAICHUANSHUXIANDEZHOUWEIFASHE,XINHAOZHIJIANYOUYUDIANCICHANGDEXIANGHUOUHEERCHANSHENGDEBUQIWANGDEZAOSHENGXINHAOCHENGWEICHUANRAO(Crosstalk)。

PCBBANCENGDECANSHU、XINHAOXIANDEJIANJU、QUDONGDUANHEJIESHOUDUANDEDIANQITEXINGYIJIXINHAOXIANDUANJIEFANGSHIDUICHUANRAODOUYOUYIDINGDEYINGXIANG。

SUOYIWEILEJIANSHAOGAOPINXINHAODECHUANRAO,ZAIBUXIANDESHIHOUYAOQIUJINKENENGDEZUODAOYIXIAJIDIAN:

滚球体育ZAIBUXIANKONGJIANYUNXUDETIAOJIANXIA,ZAICHUANRAOJIAOYANZHONGDELIANGTIAOXIANZHIJIANCHARUYITIAODIXIANHUODIPINGMIAN,KEYIQIDAOGELIDEZUOYONGERJIANSHAOCHUANRAO。DANGXINHAOXIANZHOUWEIDEKONGJIANBENSHENJIUCUNZAISHIBIANDEDIANCICHANGSHI,RUOWUFABIMIANPINGXINGFENBU,KEZAIPINGXINGXINHAOXIANDEFANMIANBUZHIDAMIANJI“DI”LAIDAFUJIANSHAOGANRAO。

ZAIBUXIANKONGJIANXUKEDEQIANTIXIA,JIADAXIANGLINXINHAOXIANJIANDEJIANJU,JIANXIAOXINHAOXIANDEPINGXINGZHANGDU,SHIZHONGXIANJINLIANGYUGUANJIANXINHAOXIANCHUIZHIERBUYAOPINGXING。RUGUOTONGYICENGNEIDEPINGXINGZOUXIANJIHUWUFABIMIAN,ZAIXIANGLINLIANGGECENG,ZOUXIANDEFANGXIANGWUBIQUEWEIXIANGHUCHUIZHI。

ZAISHUZIDIANLUZHONG,TONGCHANGDESHIZHONGXINHAODOUSHIBIANYANBIANHUAKUAIDEXINHAO,DUIWAICHUANRAODA。SUOYIZAISHEJIZHONG,SHIZHONGXIANYIYONGDIXIANBAOWEIQILAIBINGDUODADIXIANKONGLAIJIANSHAOFENBUDIANRONG,CONGERJIANSHAOCHUANRAO。DUIGAOPINXINHAOSHIZHONGJINLIANGSHIYONGDIDIANYACHAFENSHIZHONGXINHAOBINGBAODIFANGSHI,XUYAOZHUYIBAODIDAKONGDEWANZHENGXING。

滚球体育XIANZHIBUYONGDESHURUDUANBUYAOXUANKONG,ERSHIJIANGQIJIEDIHUOJIEDIANYUAN(DIANYUANZAIGAOPINXINHAOHUILUZHONGYESHIDI),YINWEIXUANKONGDEXIANYOUKENENGDENGXIAOYUFASHETIANXIAN,JIEDIJIUNENGYIZHIFASHE。SHIJIANZHENGMING,YONGZHEIZHONGBANFAXIAOCHUCHUANRAOYOUSHINENGLIJIJIANXIAO。

滚球体育6、JICHENGDIANLUKUAIDEDIANYUANYINJIAOZENGJIAGAOPINTUIOUDIANRONG

MEIGEJICHENGDIANLUKUAIDEDIANYUANYINJIAOJIUJINZENGYIGEGAOPINTUIOUDIANRONG。ZENGJIADIANYUANYINJIAODEGAOPINTUIOUDIANRONG,KEYIYOUXIAODIYIZHIDIANYUANYINJIAOSHANGDEGAOPINXIEBOXINGCHENGGANRAO。

7、GAOPINSHUZIXINHAODEDIXIANHEMONIXINHAODIXIANZUOGELI

滚球体育MONIDIXIAN、SHUZIDIXIANDENGJIEWANGGONGGONGDIXIANSHIYAOYONGGAOPINELIUCIZHULIANJIEHUOZHEZHIJIEGELIBINGXUANZEHESHIDEDIFANGDANDIANHULIAN。GAOPINSHUZIXINHAODEDIXIANDEDIDIANWEIYIBANSHIBUYIZHIDE,LIANGZHEZHIJIECHANGCHANGCUNZAIYIDINGDEDIANYACHA,ERQIE,GAOPINSHUZIXINHAODEDIXIANHAICHANGCHANGDAIYOUFEICHANGFENGFUDEGAOPINXINHAODEXIEBOFENLIANG,DANGZHIJIELIANJIESHUZIXINHAODIXIANHEMONIXINHAODIXIANSHI,GAOPINXINHAODEXIEBOJIUHUITONGGUODIXIANOUHEDEFANGSHIDUIMONIXINHAOJINXINGGANRAO。

SUOYITONGCHANGQINGKUANGXIA,DUIGAOPINSHUZIXINHAODEDIXIANHEMONIXINHAODEDIXIANSHIYAOZUOGELIDE,KEYICAIYONGZAIHESHIWEIZHIDANDIANHULIANDEFANGSHI,HUOZHECAIYONGGAOPINELIUCIZHUHULIANDEFANGSHI。

8、BIMIANZOUXIANXINGCHENGDEHUANLU

GELEIGAOPINXINHAOZOUXIANJINLIANGBUYAOXINGCHENGHUANLU,RUOWUFABIMIANZEYINGSHIHUANLUMIANJIJINLIANGXIAO。

滚球体育9、BIXUBAOZHENGLIANGHAODEXINHAOZUKANGPIPEI

XINHAOZAICHUANSHUDEGUOCHENGZHONG,DANGZUKANGBUPIPEIDESHIHOU,XINHAOJIUHUIZAICHUANSHUTONGDAOZHONGFASHENGXINHAODEFANSHE,FANSHEHUISHIHECHENGXINHAOXINGCHENGGUOCHONG,DAOZHIXINHAOZAILUOJIMENXIANFUJINBODONG。

XIAOCHUFANSHEDEGENBENBANFASHISHICHUANSHUXINHAODEZUKANGLIANGHAOPIPEI,YOUYUFUZAIZUKANGYUCHUANSHUXIANDETEXINGZUKANGXIANGCHAYUEDAFANSHEYEYUEDA,SUOYIYINGJINKENENGSHIXINHAOCHUANSHUXIANDETEXINGZUKANGYUFUZAIZUKANGXIANGDENG。

TONGSHIHAIYAOZHUYIPCBSHANGDECHUANSHUXIANBUNENGCHUXIANTUBIANHUOGUAIJIAO,JINLIANGBAOCHICHUANSHUXIANGEDIANZUKANGLIANXU,FOUZEZAICHUANSHUXIANGEDUANZHIJIANYEJIANGHUICHUXIANFANSHE。

滚球体育ZHEIJIUYAOQIUZAIJINXINGGAOSUPCBBUXIANSHI,BIXUYAOZUNSHOUYIXIABUXIANGUIZE:

滚球体育USBBUXIANGUIZE。YAOQIUUSBXINHAOCHAFENZOUXIAN,XIANKUAN10mil,XIANJU6mil,DIXIANHEXINHAOXIANJU6mil。

HDMIBUXIANGUIZE。YAOQIUHDMIXINHAOCHAFENZOUXIAN,XIANKUAN10mil,XIANJU6mil,MEILIANGZUHDMICHAFENXINHAODUIDEJIANJUCHAOGUO20mil。

LVDSBUXIANGUIZE。YAOQIULVDSXINHAOCHAFENZOUXIAN,XIANKUAN7mil,XIANJU6mil,MUDESHIKONGZHIHDMIDECHAFENXINHAODUIZUKANGWEI100+-15%OUMU

DDRBUXIANGUIZE。DDR1ZOUXIANYAOQIUXINHAOJINLIANGBUZOUGUOKONG,XINHAOXIANDENGKUAN,XIANYUXIANDENGJU,ZOUXIANBIXUMANZU2WYUANZE,YIJIANSHAOXINHAOJIANDECHUANRAO,DUIDDR2JIYISHANGDEGAOSUQIJIAN,HAIYAOQIUGAOPINSHUJUZOUXIANDENGZHANG,YIBAOZHENGXINHAODEZUKANGPIPEI。

10、BAOCHIXINHAOCHUANSHUDEWANZHENGXING

滚球体育BAOCHIXINHAOCHUANSHUDEWANZHENGXING,FANGZHIYOUYUDIXIANFENGEYINQIDE“DIDANXIANXIANG”。