隨sui著zhe芯xin片pian的de集ji成cheng度du越yue來lai越yue高gao，內nei部bu晶jing體ti管guan數shu量liang越yue來lai越yue大da。芯xin片pian的de外wai部bu引yin腳jiao數shu量liang有you限xian，為wei每mei一yi個ge晶jing體ti管guan提ti供gong單dan獨du的de供gong電dian引yin腳jiao是shi不bu現xian實shi的de。芯xin片pian的de外wai部bu電dian源yuan引yin腳jiao提ti供gong給gei內nei部bu晶jing體ti管guan一yi個ge公gong共gong的de供gong電dian節jie點dian
，因yin此ci內nei部bu晶jing體ti管guan狀zhuang態tai的de轉zhuan換huan必bi然ran引yin起qi電dian源yuan噪zao聲sheng在zai芯xin片pian內nei部bu的de傳chuan遞di。

duineibugegejingtiguandecaozuotongchangyouneiheshizhonghuopianneiwaisheshizhongtongbu，danshiyouyuneibuyanshidechabie
，gegejingtiguandezhuangtaizhuanhuanbukenengshiyangetongbude，dangmouxiejingtiguanyijingwanchenglezhuangtaizhuanhuan，lingyixiejingtiguankenengrengchuyuzhuanhuanguochengzhong。xinpianneibuchuyugaodianpingdemendianluhuibadianyuanzaoshengchuandidaoqitamendianludeshurubufen。ruguojieshoudianyuanzaoshengdemendianlucishichuyudianpingzhuanhuandebudingtaiquyu，namedianyuanzaoshengkenenghuibeifangda
，bingzaimendianludeshuchuduanchanshengjuxingmaichongganrao，jineryinqidianludeluojicuowu。xinpianwaibudianyuanyinjiaochudezaoshengtongguoneibumendianludechuanbo，haikenenghuichufaneibujicunqichanshengzhuangtaizhuanhuan。

除了對芯片本身工作狀態產生影響外，電源噪聲還會對其他部分產生影響。比如電源噪聲會影響晶振、PLL
、DLL的抖動特性
，AD轉換電路的轉換精度等。

由(you)於(yu)最(zui)終(zhong)產(chan)品(pin)工(gong)作(zuo)溫(wen)度(du)的(de)變(bian)化(hua)以(yi)及(ji)生(sheng)產(chan)過(guo)程(cheng)中(zhong)產(chan)生(sheng)的(de)不(bu)一(yi)致(zhi)性(xing)

，如(ru)果(guo)是(shi)由(you)於(yu)電(dian)源(yuan)係(xi)統(tong)產(chan)生(sheng)的(de)問(wen)題(ti)，電(dian)路(lu)將(jiang)非(fei)常(chang)難(nan)調(tiao)試(shi)
，因(yin)此(ci)最(zui)好(hao)在(zai)電(dian)路(lu)設(she)計(ji)之(zhi)初(chu)就(jiu)遵(zun)循(xun)某(mou)種(zhong)成(cheng)熟(shu)的(de)設(she)計(ji)規(gui)則(ze)

，使(shi)電(dian)源(yuan)係(xi)統(tong)更(geng)加(jia)穩(wen)健(jian)。