一博科技 PCB 设计指导书部门department密级Confidentiality level设计部机密文档类别Total 66 pages 共 66 页无Xxx 科技有限公司 PCB 设计指导书（Ver 1.0）(仅供内部使用） For internal use only拟制： Prepared by 审核： Reviewed by 批准： Granted by日期： Date日期： Date日期： Date2006-06-052006-08-052006-08-09Page 2 , Total 修订记录 Revision record[P1]日期Date修订版本Revision version[L2]修改描述Change Description[L3]作者Author2006-8-10初稿完成 initial transmittalPage 3 , Total 目录 Catalog1 常见信号介绍...........................................................................................................................................81.1数字信号...............................................................................................................................................81.1.1CPU..........................................................................................................................................81.1.2PCI............................................................................................................................................81.1.3PCI-EXPRESS..........................................................................................................................91.1.4PHY..........................................................................................................................................91.2模拟信号.............................................................................................................................................101.2.1音视频信号............................................................................................................................101.3接口信号.............................................................................................................................................111.3.1串口...........................................................................................................................
