Mon premier blog

Signal Integrity Issues and Printed Circuit Board Design Douglas Brooks
Publisher: Prentice Hall International

Fortunately, help is available for each of these problems. Incorrect impedance may cause signal integrity issues. [5] Special Issue on PCB Level Signal Integrity, Power Integrity, and EMC, IEEE Transactions on Electromagnetic Compatibility, Vol. Several things could go wrong - including pin assignments that don't work in the board layout, signal integrity problems on the board, and parasitic package inductance. The Kontron submission described the challenges its CAD team faced in designing the Kontron KTC5520-EATX server board. As presented with the previous paper [1], also standing waves occur from these . Home> IC Design Design Center > How To Article Exactly how signal integrity engineers can combine traditional and behavioral black box models to trick-out their high-speed interfaces will be the subject of the DesignCon session, Modeling High-Speed Interconnects for the Signal Integrity Physical models usually simulate a high-speed interconnect with RLC circuit elements whose values can be adjusted to debug problems and to optimize performance. A DIMM is more than some DRAMs on a PCB. The thicker the PCB, the more vias become transmission-line stubs that degrade signals because they can radiate interference and cause signal reflections. When designing the PCB, contradictory goals of power delivery with high integrity and bi-directional signal integrity need to be balanced. Cadence recently acquired FPGA/PCB "co-design" technology that automates and optimizes pin assignments, and PCB signal-integrity software is widely available. Incorrect PCB stack-up may cause crosstalk issues. I like the discussion of how twisted pair wire helps prevent radiation. Inadequate power plane designs may cause random ECC errors. The resonant frequencies, n.l/2, are determined by the physical distance between these decoupling isles and the permittivity of the insulating material used with the PCB stack-up. The EMA Timing Designer, integrated with the Allegro PCB SI capability, helps users quickly achieve timing-closure on critical high-speed signals. Distribution Networks with On-Chip Decoupling Capacitors,Springer, 2010. This article comes from the book Signal Integrity Issues and Printed Circuit Board Design by Douglas Brooks.