【正文】 目錄1 印制線路板（PCB）說明 .....................................................................................................................................................4 印制線路板定義 .............................................................................................................................................................4 印制線路板基本組成 .....................................................................................................................................................4 印制線路板分類 .............................................................................................................................................................42 原理圖入口條件 .....................................................................................................................................................................53 原理圖的使用 .........................................................................................................................................................................64 結(jié)構(gòu)圖入口條件（游） .........................................................................................................................................................75 結(jié)構(gòu)圖的使用 .........................................................................................................................................................................86 電路分類 .................................................................................................................................................................................9 從安規(guī)角度分類 .............................................................................................................................................................9 布局設(shè)計(jì)要求 .................................................................................................................................................................9 各類電路距離要求 .........................................................................................................................................................9 其他要求 .......................................................................................................................................................................107 規(guī)則設(shè)置 ...............................................................................................................................................................................11 規(guī)則分類 .......................................................................................................................................................................11 基本設(shè)置 .......................................................................................................................................................................11 特殊區(qū)域 .......................................................................................................................................................................12 電源、地信號設(shè)置 .......................................................................................................................................................13 時鐘信號設(shè)置 ...............................................................................................................................................................13 差分線的設(shè)置 ...............................................................................................................................................................13 等長規(guī)則 .......................................................................................................................................................................14 最大過孔數(shù)目規(guī)則 .......................................................................................................................................................14 拓?fù)湟?guī)則 .......................................................................................................................................................................14 其他設(shè)置 .......................................................................................................................................................................158 安規(guī)、EMC ..........................................................................................................................................................................16 PCB 板接口電源的 EMC 設(shè)計(jì) ...................................................................................................................................16 板內(nèi)模擬電源的設(shè)計(jì) ...................................................................................................................................................16 關(guān)鍵芯片的電源設(shè)計(jì) ...................................................................................................................................................17 普通電路布局 EMC 設(shè)計(jì)要求 ....................................................................................................................................17 接口電路的 EMC 設(shè)計(jì)要求 ........................................................................................................................................17 時鐘電路的 EMC 設(shè)計(jì)要求 ........................................................................................................................................17 其他特殊電路的 EMC 設(shè)計(jì)要求 ................................................................................................................................18 其他 EMC 設(shè)計(jì)要求 ....................................................................................................................................................189 DFX 設(shè)計(jì) ..............................................................................................................................................................................19 空焊盤（DUMMY PAD ） ...............................................................................................................................................19 0402 阻容器件的應(yīng)用條件 .......................