پنجشنبه 12 اسفند 1395
نویسنده: Moriah Fox
Signal Integrity Issues and Printed Circuit Board Design Douglas Brooks
Publisher: Prentice Hall International
CMOS IC Layout - Newnes Circuit.and.Physical.Design.ebook-Spy.rar. Until relatively recent times digital PCB design (and especially when prototyping) could be viewed as simply a means to electrically interconnect components and unless you designed RF circuits there was little else to worry about. However the PCB itself, or the means of connecting the components used (i.e. We may perform Even so, finding a problem early in the design cycle using post-layout simulation is still orders of magnitude less expensive than trying to fix a shipping product. Power has Noise, voltage drop along traces, current density variation, and other problems occur. As presented with the previous paper , also standing waves occur from these . 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. Distribution Networks with On-Chip Decoupling Capacitors,Springer, 2010. John Isaac The HyperLynx PI tool was created for designers to evaluate and mesh these power requirements, reducing the need for decoupling capacitators, shortening design times and eliminating respins, and improving signal integrity.  Special Issue on PCB Level Signal Integrity, Power Integrity, and EMC, IEEE Transactions on Electromagnetic Compatibility, Vol. This time more concentration on PCB Design, CMOS , ASIC,SOC and Signal Integrity etc..etc.. Prototyping), is now is a very common cause of a loss of signal integrity. Of course, some stackups make it easier to do I have done several PCIe designs and what I do is this:. If you haven't already read it, hottconsultants.com/techtips/pcb-stack-up-1.html provides a very good overview of tradeoffs among stackup choices various numbers of layers – vicatcu Jan 17 at 19:35 So long as you pay attention to trace impedance, signal return paths, and all of the other usual signal integrity things then you can really do anything with the stackup. Success in electronic design often hinges on running simulations. This week, Mentor Graphics released HyperLynx PI, a design software program aimed at improving power integrity on the PCB. Whether signal integrity, power integrity, electromagnetic compatibility, analog, or even thermal simulations, they reveal information about design feasibility, margins, and limitations.