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YCbCr/YPbPr色差分量接口是S-Video端子的升級產品，支持1080P高清，由紅、綠、藍三種顏色的線組成，其中，藍色和紅色分別傳輸藍色差信號（Cb/Pb）和紅色差信號（Cr/Pr），而綠色傳輸Y信號。YCbCr/YPbPr接口實現了色度和亮度的分離傳輸，廣泛應用於機頂盒、TV等產品上。當用作外部接口時，YCbCr/YPbPr接口會受到直接來自外部靜電放電（ESD）的影響；同時，機頂盒連接室外線纜，也存在雷擊浪湧幹擾破壞風險。這些情況都有可能會造成YCbCr/YPbPr接口內部元器件的損壞，影響信號的正常傳輸。因此，在YCbCr/YPbPr接口電路設計時，需要選用專業的電路防護器件。接下來，專業電路保護器件生產廠家及保護方案服務商東沃電子要分享的是：YCbCr/YPbPr接口靜電保護方案及TVS二極管陣列（ESD靜(jing)電保護二極管(guan)）選型選用。

YCbCr/YPbPr接口靜電(dian)保(bao)護方案圖

YCbCr/YPbPr接口(kou)靜(jing)電保護方案說明

從東(dong)沃YCbCr/YPbPr接(jie)口靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)保護(hu)方(fang)案(an)圖中可以看出，視頻傳輸(shu)信號(hao)防(fang)護(hu)，東(dong)沃電(dian)(dian)(dian)(dian)(dian)子(zi)技術推薦選用(yong)3顆分立式(shi)TVS二極管(guan)陣列DW03DLC-B-S或1顆集(ji)(ji)成(cheng)式(shi)TVS二極管(guan)陣列DW05R-E對YCbCr/YPbPr接(jie)口進行靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)浪湧防(fang)護(hu)。分立式(shi)TVS二極管(guan)陣列DW03DLC-B-S，工作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)3.3V、峰(feng)值脈沖電(dian)(dian)(dian)(dian)(dian)流(liu)20A、鉗位電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)19V、漏電(dian)(dian)(dian)(dian)(dian)流(liu)1μA、SOD-323封(feng)裝；結電(dian)(dian)(dian)(dian)(dian)容(rong)低至1pF，保證視頻信號(hao)不(bu)失真；符(fu)合IEC 61000-4-2（靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)）±15kV（空氣）和 ±8kV（接(jie)觸）標(biao)準(zhun)。集(ji)(ji)成(cheng)式(shi)TVS二極管(guan)陣列DW05R-E，工作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)5V、峰(feng)值脈沖電(dian)(dian)(dian)(dian)(dian)流(liu)6.5A、鉗位電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)16V、漏電(dian)(dian)(dian)(dian)(dian)流(liu)1μA、結電(dian)(dian)(dian)(dian)(dian)容(rong)0.4pF，保證視頻信號(hao)不(bu)失真；SOT-143封(feng)裝，集(ji)(ji)成(cheng)了3個(ge)端口保護(hu)，有效減小PCB安裝空間；符(fu)合IEC 61000-4-2（靜(jing)(jing)電(dian)(dian)(dian)(dian)(dian)）±15kV（空氣）和 ±8kV（接(jie)觸）標(biao)準(zhun)。

YCbCr/YPbPr接口靜電保(bao)護器件參數

1）東沃TVS二極管陣列(lie)DW03DLC-B-S參數

查看東沃電子「ESD-DW03DLC-B-S Datasheet」規(gui)格(ge)書(shu)可知：

2）東沃(wo)TVS二極管陣列DW05R-E參(can)數

查(cha)看東沃電子「ESD-DW05R-E Datasheet」規(gui)格書可知：

以上是東沃YCbCr/YPbPr接口靜電保護經典方案，如有特殊需求，歡迎前來探討。浪湧靜電防護方案，找東沃電子，電路保護不迷路！方案中選用到的TVS二極管陣列DW03DLC-B-S和DW05R-E，東沃電子已全面量產、品質穩定、高可靠性、交期迅速、廠家價格、免費樣品、免費EMC測試、免費選型，歡迎廣大新老客戶前來咨詢：137 5773 6996（微信同號）余工。