1 高速数字电路设计 设计 2 目 录 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 ...............