Zuken launched CR-5000 Lightning Power Integrity Advance, a
software designed for the concurrent analysis of power and DC noise
effects and electromagnetic interference as an integral part of the PCB
The new software module enables PCB design engineers to perform
advanced power integrity analysis for AC and DC power distribution noise
at any point during the physical design process. According to the
manufacturer, design time is shortened by eliminating iterations and
rework; for example, decoupling capacitor optimization effort can be
reduced by up to 40 percent.
As the PCB layout progresses, users are able to get immediate
feedback on the effect of design decisions for each power distribution
network in the design. This rapid feedback identifies the impact of
design changes such as changing decoupling schemes. High-speed digital
boards featuring multiple supply voltages have become commonplace.
Examples include USB3.0, DDR3 and other kinds of signals used by FPGAs.
In these cases, careful design of PCB power distribution is essential.
In CR-5000 Lightning Power Integrity Advance, AC and DC power analysis
is combined in a single environment. AC analysis assists decoupling
capacitor selection and verifies detailed plane impedance. DC analysis
identifies unintended design features that reduce supply voltages below
specification when they reach ICs.
AC analysis checks frequency-dependent power/ground impedance to make
sure impedance at a device is low at key frequencies such as a clock
frequency and its harmonics. High impedance may require correction by
decoupling or by reshaping a power or ground plane.
DC analysis automatically creates an equivalent DC circuit
representing power distribution. This circuit is combined with knowledge
of device power consumption and other datasheet specifications to check
DC voltage drops and current flow. Common problems detected include
dense grouping of via holes causing increased local resistance. The EMC
analysis capabilities of CR-5000 Lightning Power Integrity Advance
utilize a fast empirical EMC simulation approach developed by the
EMC-Expert System consortium. This enables quick full-board EMC analysis
for differential and common mode radiation, detecting potential EMC
root causes during the PCB design process.
This solution is an add-on to the CR-5000 Lightning design
environment and part of Zuken's integrated CR-5000 enterprise-wide PCB
More information at www.zuken.com/power-integrity-advance
Visit Zuken at www.zuken.com
article originally appeared on EE Times Europe.