ddr3 routing guidelines

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The vias should spread out and allow for two or more traces to be routed between the vias.

However, if there is an EMI PCB Design Techniques for DDR, DDR2 & DDR3 (Part 2) continues Figure 2: In this design, signal integrity will be better if the series terminator is placed 4.5” away

endstream (M9.56968.Heading2.5.Layout.Guidelines.for.the.Signal.Groups) 201 0 R (M9.58890.TBItemC.54) 202 0 R (M9.61389.TBTitle.Table12.Worst.Case.Parameters.for.VTT.Current.Calculation) 203 0 R (M9.66452.FigTitle.Figure3.SSTL.Signal.Waveform) 204 0 R (M9.69092.Heading3.62.Simulation.results.for.QorIQ.memory.controller.receiver.during.a) 205 0 R

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32 0 obj • LPDDR/DDR2/DDR3 - For more information, see the device-specific data manual (precludes timing analysis). Zachariah Peterson has an extensive technical background in academia and industry. endobj

Stay up to date with the latest technology and industry trends with our complete collection of technical white papers. (I1.399479) 152 0 R (I1.399495) 153 0 R (I1.399517) 154 0 R (I1.399530) 155 0 R (I1.399546) 156 0 R As you begin to place components, it’s important to set aside space for fan-out, termination resistors, and termination power supplies.

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Altium Designer gives you a complete set of rules-driven interactive routing tools for implementing fly-by topology in your DDR3 and DDR4 layout.

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��w�G� xR^���[�oƜch�g�`>b���$���*~� �:����E���b��~���,m,�-��ݖ,�Y��¬�*�6X�[ݱF�=�3�뭷Y��~dó ���t���i�z�f�6�~`{�v���.�Ng����#{�}�}��������j������c1X6���fm���;'_9 �r�:�8�q�:��˜�O:ϸ8������u��Jq���nv=���M����m����R 4 � There are 50Ohms FPGA breakout and 36Ohms on main PCB. /Keywords (DDR3 SDRAM, DDR3 SDRAM Memory Interface, DDR3 memory subsystem, DDR3 designer checklist, fly-by memory topology)

<< DDR4 is one of many high speed interfaces that requires impedance control during routing.

Additionally, your routing plan must avoid routing through via voids on the plane. Dave joins us on the OnTrack podcast to bring his uniquely qualified perspective to bear on topics like cloud security and secure collaboration in a disaggregated market, and FPGA (Field Programmable Gate Arrays) and their applications in the cloud, as well as to give us the details on the upcoming AWS (Amazon Web Services) re:Invent conference.

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/Im2 40 0 R PCB File Viewer by Altium PCB File Viewer by Altium, Best Practices: Efficient Use of Snapping in Altium Designer, Getting your PCB layout design done takes patience and precision.

13 0 obj /Subtype /Link << >> /JTM (Distiller) /Dest (G387855) His work has been published in over a dozen peer-reviewed journals and conference proceedings, and he has written hundreds of technical blogs on PCB design for a number of companies. /N 3 How the Open Source Ventilator Project Went from Design to Build in Record Time. n�3ܣ�k�Gݯz=��[=��=�B�0FX'�+������t���G�,�}���/���Hh8�m�W�2p[����AiA��N�#8$X�?�A�KHI�{!7�, AN3940, Hardware and Layout Design Considerations for DDR3 SDRAM Memory Interfaces - App Note. /Rect [360 449.16 558 458.52]

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In general, 2^N chips can be connected with a double-T topology (N = number of branches).

(P.14) 216 0 R (P.15) 217 0 R (P.16) 218 0 R (P.17) 219 0 R (P.18) 220 0 R 2008

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Learn about the new version coming to the public! 30 0 obj

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