SPRAAV1C May   2009  – March 2020 AM3703 , AM3715 , OMAP3503 , OMAP3515 , OMAP3525 , OMAP3530

 

  1.   PCB Design Guidelines for 0.4mm Package-On-Package (PoP) Packages, Part I
    1.     Trademarks
    2. 1  Using This Guide
    3. 2  A Word of Caution
    4. 3  A Team Sport
    5. 4  Be Wary of Quotes
    6. 5  Don’t Forget Your CAD Tools
    7. 6  Metric Vs English
    8. 7  PCB Fab Limits
    9. 8  Routing and Layer Stackup
    10. 9  OMAP35x 0.4mm Pitch
    11. 10 Pad Type
    12. 11 PCB Pad Dimensions for 0.4mm BGA Package
    13. 12 Multiple BGA Packages
    14. 13 Etch Traps and Heat Sinks
    15. 14 Vias and VIP
    16. 15 Laser Blind Vias
    17. 16 Filled Vias
    18. 17 Know Your Tools
    19. 18 BeagleBoard
    20. 19 BeagleBoard Views
      1. 19.1 Top Layer – Signal - Area Underneath the OMAP35x
      2. 19.2 Layer 2 – Ground
      3. 19.3 Layer 3 – Signal
      4. 19.4 Layer 4 – Signal
      5. 19.5 Layer 5 – Power (VDD2)
      6. 19.6 Layer 6 – Signal – Bottom Copper – Bottom Component Outlines
    21. 20 OMAP35x Decoupling
    22. 21 PCB Finishes for High Density Interconnect (HDI)
    23. 22 Real World Second Opinion
    24. 23 Acknowledgments
    25. 24 References
  2.   Revision History

18 BeagleBoard

The BeagleBoard is an open-source hardware platform based on the Texas Instruments' OMAP35x. The platform is a complete single board computer suitable for software development and debug. Use the following link for additional information, including the hardware schematics and Gerber files: http://beagleboard.org. Also consider subscribing to the BeagleBoard RSS feed.

beagleboard_praav1.gifFigure 16. BeagleBoard.org

The BeagleBoard is used to illustrate the use of the 0.4 mm PCB design guidelines and the assembly guidelines discussed in PCB Assembly Guidelines for 0.4mm Package-On-Package (PoP) Packages, Part II.

Figure 17 shows the board layout. Subsequent sections discuss each layer as it is used to route the BeagleBoard with special attention given to the area under the OMAP35x device. The overall board dimensions are 3 inches by 3.1 inches and it is a 6 layer board.

Copies of the Gerber files and schematics from the BeagleBoard website provide an example of a real layout that has gone to production.

beag_pcb_praav1.gifFigure 17. Top Layer BeagleBoard Layout