10 Laying Out the PCB

After completing schematic capture, see the following information on laying out the PCB:

• It is often helpful to refer to an example layout when designing a custom PCB:
  • The AM335x Cortex-A8 overview has links to TI hardware designs based on AM335x.
  • The EVM designs listed in Section 2 all contain full PCB layouts that can be used as successful sample designs.
• Make sure to follow the Layout Specifications for the following Critical Interfaces:
  • DDR2 - see device-specific data sheet
  • LPDDR/DDR3 - see device-specific data sheet
  • USB - For more information, see the High-Speed Interface Layout Guidelines
• Plan to have an internal PCB layout review with your design team to verify that net connection traces and the power distribution network were created correctly.
• General Information Articles:
  • Understanding TI’s PCB Routing Rule-Based DDR Timing Specification
  • General Hardware Design/BGA PCB Design/BGA