文件名称:高速数字电路设计及EMC设计
文件大小:740KB
文件格式:PDF
更新时间:2013-09-24 10:37:36
PCB EMC
高速数字电路设计及EMC设计,非常有用 1. 高速数字电路设计...........................................................................................................................5 1.1何谓高速数字信号?..................................................................................................................5 1.2微带线、带状线的概念..............................................................................................................5 1.2.1微带线(Microstrip)......................................................................................................5 1.2.2带状线(Stripline).........................................................................................................6 1.2.3经验数据...........................................................................................................................6 1.2.4同轴线(coaxial cable)..................................................................................................6 1.2.5双绞线(twisted-pair cable)..........................................................................................7 1.2.6等间隔的电容负载的影响...............................................................................................7 1.3 常见高速电路.............................................................................................................................8 1.3.1 ECL(Emitter Coupled Logic)电路..............................................................................8 1.3.2 CML(Current Mode Logic)电路.................................................................................9 1.3.3 GTL(Gunning Transceiver Logic)电路.....................................................................10 1.3.4 BTL(Backplane Transceiver Logic)电路...................................................................10 1.3.5 TTL(Transistor Transistor Logic)电路......................................................................11 1.3.6 模数转换电路—线接收器............................................................................................12 1.4 常见电路匹配措施...................................................................................................................12 1.4.1反射................................................................................................................................12