[SI-LIST] Re: PDN measurement references
- From: Charles Hymowitz <charles@xxxxxxxx>
- To: "bowden.ivor@xxxxxxxxx" <bowden.ivor@xxxxxxxxx>, "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Sun, 6 Jul 2014 23:00:49 -0500
Ivor
Here is the current list of articles about PDN that we have published over the
last 2 years or so. This includes both Picotest.com and AEi Systems
(www.aeng.com). There are also some articles that will be forthcoming at
Designcon.
I have the 7 most popular ones in a PDF file I can email you or anyone who is
interested. All of these can also be found on
http://www.aeng.com/power_integrity.htm.
Lastly, Steve Sandler has a book coming out this fall (Nov.) called Power
Integrity: Measuring, Optimizing and Troubleshooting Power Related Parameters
in Electronic Systems. Its ALL about test and there are many section applicable
to PDN.
http://www.amazon.com/Power-Integrity-Steven-Sandler/dp/0071830995/ref=sr_1_1?ie=UTF8&qid04705577&sr=8-1&keywords=power+integrity+sandler
Articles about PDN
Improve Performance And Reduce Cost -
http://electronicdesign.com/power/improve-performance-and-reduce-cost
By carefully matching the VRM, PCB planes, and load circuits to each other and
to the required impedance magnitude, a flat PDN impedance can be created while
minimizing circuit board area. The optimization also minimizes the use of
expensive low-ESR capacitors and low-impedance voltage regulators.
Measure PDN on a budget -
http://www.edn.com/design/pc-board/4429510/Measure-PDN-on-a-budget
As the use of microcontrollers, CPUs and FPGAs continues to grow, more
engineers are facing challenges with their PDN design and measurement.
Typically, PDN measurements are performed using a network analyzer. A 1-port
measurement can be used for impedance levels above a few hundred mÙ
PCB characteristics affect PDN performance -
http://edn.com/design/pc-board/4429719/PCB-characteristics-affect-PDN-performance
The basic design rules for power distribution networks (PDN) teach us that the
best performance is obtained from a uniform, frequency independent (or flat)
impedance profile. This is one reason that power supply stability is
important, since a power supply with poor stability results in an impedance
peak, which degrades the flat impedance profile and also the performance of the
circuit being powered.
PDN Basics -Paralleling Tantalum and Ceramic Capacitors Can Be Risky -
http://powerelectronics.com/passive-components/pdn-basics-paralleling-tantalum-and-ceramic-capacitors-can-be-risky
Paralleling capacitors to achieve high frequency sideband decoupling must take
into account the performance characteristics of individual capacitors.
Why is PDN measured using a VNA and not an oscilloscope? -
http://powerelectronics.com/community/why-pdn-measured-using-vna-and-not-oscilloscope
If PDN (Power Distribution Network) analysis is an assessment of the input
power supply voltage to a CPU then why is it measured using a VNA and not an
oscilloscope?
Five things every Engineer should know about PDN -
http://powerelectronics.com/power-electronics-systems/five-things-every-engineer-should-know-about-pdn?NL=PET-01&Issue=PET-01_20131009_PET-01_949&YM_RID=ssandler1@xxxxxxx&YM_MID26486&sfvc4enewsB
Steve Sandler describes the Top 5 most important things that every Engineer
should know about PDN
PDN Issues Occur in the Simplest of Circuits -
http://www.edn.com/design/pc-board/4424022/PDN-issues-occur-in-the-simplest-of-circuits
This study focuses on a much smaller scale, addressing a very simple circuit
that experiences related PDN issues. While the issues shown here may seem
obvious to some, this is an excellent example of a very common problem.
Target impedance based solutions for PDN may not provide realistic assessment -
http://www.edn.com/design/test-and-measurement/4413192/Target-impedance-based-solutions-for-PDN-may-not-provide-a-realistic-assessment
One of the more common design techniques for power distribution networks (PDN)
is the determination of the peak impedance that will assure that the voltage
excursions on the power rail will be maintained within allowable limits,
generally referred to as the target impedance.
How to Make Higher Voltage Power-Distribution-Network Measurements -
http://www.edn.com/design/test-and-measurement/4405531/How-to-make-higher-voltage-power-distribution-network-measurements
A two-port power distribution network (PDN) measurement is arguably the most
accurate method of measuring low-value impedances, such as the output of point
of load (POL) regulators and power planes.
How To Measure Ultra-Low Impedances -
http://electronicdesign.com/article/power/measure-ultralow-impedances-74064
High-speed digital circuits need clean power, but can stress power systems in
ways that make it difficult for the system to deliver what's needed. For
example, the current drawn by high-speed processors and FPGAs can change by
tens of amperes in a nanosecond. The power system is expected to remain stable
when this occurs, without ringing, over-shooting or under-shooting, or
responding in any way that might cause the circuitry to misbehave. The power
distribution network (PDN)-which, together with the power supply itself, form
the power system-must maintain a low source impedance, with minimal resistance
and well-controlled reactive elements.
SSO Noise Effects in RTAX FPGAs - Part 1 -
http://www.aeng.com/registration/check.php?id=U1NPIE5vaXNlIEVmZmVjdHM
The design of a Power Distribution Network (PDN) to support FPGAs with large
numbers of fast, Simultaneously Switching Outputs (SSO) is currently an area
with little definitive test data, and therefore little definitive analysis or
correlated models. AEi Systems has developed a methodology for measuring the
worst-case effects of SSO on the PDN of FPGAs and carried out laboratory
testing using the commonly used part, the Microsemi RTAX2000.
Articles Coming at DesignCon 2015
Target Impedance Limitation and Rogue Wave Assessments on PDN Performance
Impedance Measurement and Relating it to Control Loop Stability
A Summary of Current SI/PI Tools Including Sample PDN Assessments
In modern high speed digital circuits, power integrity (PI) performance has
become a great concern. This article provides power and signal integrity
engineers with an overview of the how several PI software tools faired at
determining the characteristic impedance of the power supply plane (power
distribution network (PDN)). The analysis results from these tools are verified
against lab measurements. The test and simulation results for a straightforward
simple design as well as the RATX624 design are discussed and presented. The
specific advantages or each tool which vary depending on the complexity of
design and PDN analysis are discussed.
A few others recommended
Power Integrity Modeling and Design for Semiconductors and Systems
http://www.amazon.com/gp/product/0136152066/ref=s9_simh_gw_p14_d0_i3?pf_rd_m
=ATVPDKIKX0DER&pf_rd_sÎnter-2&pf_rd_rVMRGBSJTSHBM66GM28&pf_rd_t1&pf_
rd_p88200382&pf_rd_iP7846#reader_B001329QC2
Signal and Power Integrity - Simplified
http://www.amazon.com/gp/product/0132349795/ref=s9_simh_gw_p14_d0_i2?pf_rd_m
=ATVPDKIKX0DER&pf_rd_sÎnter-2&pf_rd_rVMRGBSJTSHBM66GM28&pf_rd_t1&pf_
rd_p88200382&pf_rd_iP7846
Charles Hymowitz - Managing Director
AEi Systems, LLC
Charles@xxxxxxxx<mailto:Charles@xxxxxxxx>
(310) 216-1144
(310) 863-8034 (M)
http://www.aeng.com<https://urldefense.proofpoint.com/v1/url?u=http://www.aeng.com&k=1GMYaKjmAz8SrwAdnQ9klA%3D%3D%0A&r=VSM0o%2FgXI%2FBosz8W1Z0z7A%3D%3D%0A&m=FtvyBROk2hg9hWAf%2BLg769Izn6mbZ%2B5BfVmFhvO7DXo%3D%0A&sób871fd20f6950283312cabf511e770045b5e0dc764c985636c91fa272b27b9>
- Analytical Heavy Lifting
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Ivor Bowden
Sent: Saturday, July 05, 2014 3:57 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] PDN measurement references
Hi SI community,
Can anyone suggest references (documents, app notes, books,
etc) about PDN measurement methods, for both simulation and physical? Focus on
basics: practical techniques, tips, caveats, etc. Searching finds many results,
so looking for specific recommendations.
Thanks, Ivor
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx<mailto:si-list-request@xxxxxxxxxxxxx> with
'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx<mailto:si-list-request@xxxxxxxxxxxxx> with 'help'
in the Subject field
List forum is accessible at:
http://tech.groups.yahoo.com/group/si-list
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List forum is accessible at:
http://tech.groups.yahoo.com/group/si-list
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
