高速数字电路设计及EMC设计1目录1.高速数字电路设计..........................................................................................................................51.1何谓高速数字信号？..................................................................................................................51.2微带线、带状线的概念..............................................................................................................51.2.1微带线（Microstrip）......................................................................................................51.2.2带状线（Stripline）.........................................................................................................61.2.3经验数据...........................................................................................................................61.2.4同轴线（coaxialcable）..................................................................................................61.2.5双绞线（twisted-paircable）...........................................................................................71.2.6等间隔的电容负载的影响...............................................................................................71.3常见高速电路..............................................................................................................................81.3.1ECL（EmitterCoupledLogic）电路...............................................................................81.3.2CML（CurrentModeLogic）电路..................................................................................91.3.3GTL（GunningTransceiverLogic）电路.....................................................................101.3.4BTL（BackplaneTransceiverLogic）电路...................................................................101.3.5TTL（TransistorTransistorLogic）电路.......................................................................111.3.6模数转换电路—线接收器.............................................................................................121.4常见电路匹配措施....................................................................................................................121.4.1反射.................................................................................................................................121.4.2终端匹配.........................................................................................................................131.4.3始端匹配.........................................................................................................................151.5高速电路设计一般原则和调试方法........................................................................................161.5.1同步逻辑设计.................................................................................................................161.5.2了解选用器件的输入、输出结构，选用恰当的匹配电路；在考虑节省功耗，电路又能容许的情况下，可适当地引入失配。..................................................................................................................191.5.3对极高速率（300MHz以上）的信号，一般建议选用互补逻辑，以降低对电源的要求。191.5.4了解每一根高速信号电流的流向（电流环）..............................................................191.5.5信号的布线、电源和地层的分割，是否符合微带线、带状线的要求？高速信号...
