文继伟 | 31 Oct 05:21 2014

How to deal with the BP long trace?

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David Vye | 31 Oct 03:55 2014

Fwd: IEEE CPMT Chapter Full-day Workshop Enabling Technologies for IoT

thought I would forward this e-mail invite to a workshop on IoT enabling
technologies to fellow technologists in So. Cal.
- David

 IEEE CPMT Chapter presents:
Full-day workshop - IoT Technologies

   *INTERNET OF THINGS:  TECHNOLOGIES ENABLING THE REVOLUTION*

*Friday, December 5, 2014*

*UC Irvine Calit2 Auditorium*

*Platinum Sponsor*

The local IEEE CPMT Orange County Chapter and UC Irvine's Calit2 Center is
jointly hosting a full-day workshop on Internet of Things (IoT).  The event
will be held at the Calit2 building on the UCI Campus, Friday December
5th.

The workshop provides design engineers an in-depth overview of the design
challenges for Internet of Things.  It covers the technical aspects of IoT
applications, end-use device design and packaging, semiconductor and sensor
devices, wireless connectivity, back-office infrastructure system design,
reliability requirements and business opportunities.  Attendees will learn
from leading companies and technical experts in the field.

*SPEAKERS:*

   - Matthew Cheng, Broadcom             M2M Landscape
(Continue reading)

Bob Ross | 31 Oct 03:50 2014

Asian IBIS Summit (Shanghai) - Fourth Announcement

To All:

The IBIS Open Forum is holding an Asian IBIS Summit Meeting in

Shanghai, China on Friday, November 14, 2014. We have a full

program with tentative presentations given below.

Several companies listed below are co-sponsoring this large event

to be held again at the Parkyard Hotel, Shanghai.

For travel consideration, two other Asian IBIS Summits follow this

event:

  Taipei, Taiwan, Monday, November 17, Sherwood Hotel

  Yokohama, Japan, Thursday, November 20, Pacifico Yokohama

Lance Wang

IO Methodology Inc.

Bob Ross

Teraspeed Labs

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(Continue reading)

Hithesh | 29 Oct 10:31 2014
Picon

Hyperlynx - Assigning Pins from ibis

I need some help with a particular IBIS model.
When I try to assign a Pin, I get the following message in Hyperlynx
"Series type models in file. C:\path may not be assigned interactively. Use
.Ref file model assignment instead"
The part is a demux IDT74CBTLV3257

Regards
-Hithesh

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Douglas Smith | 29 Oct 05:39 2014

new form of nasty ESD

 Hi All,
My web presentation next Thursday is going to describe a new form of ESD
heretofore unreported in the literature that can wreak havoc on your
equipment designs in the field, and unwittingly the source is in your
design!More details to come.

Doug
-- 
[IMG]

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Alfred P. Neves | 27 Oct 17:26 2014

Simulation to Measurement Seminars this Week

Fellow Si-Listers, 
Simberian Inc. and Wild River Technology invites you to a technical webinar  titled “Advancing
Simulation to Measurement Validation with Channel Modeling Platforms”.  The presenter will be Yuriy
Shelpnev PhD.  

Measurement to simulation interconnects out to 50GHz is a daunting endeavor. The presentation will show
how to simplify it using Simbeor and a Channel Modeling Platform from Wild River Technology LLC called the
CMP-28/32 platform.   Results for 28-32 Gbps data rates and 50 GHz will be shown, along with material
extraction approach and connector modeling for full path simulation. The seminar will also include a
suggested S-parameter work flow process insuring good measurements.  

See details  and sign-up at http://www.simberian.com/Webinars.php?id=4

There will be 2 identical webinars on Oct. 28th and 30th at 10 AM Pacific Time.
Click here to see the outline and sign up.

Complete Simbeor kit for CMP-28/32 is available free for all Simbeor customers - just send request to
support@... CMP-28/32 validation platform with Simbeor kit
is available from Wild River Technology.
Sincerely,
Team Simberian

Sales:
Support:
Web Site:
Telephone:
sales@... 
support@... 
www.simberian.com 
1-702-876-2882
(Continue reading)

Picon

40 GHz probe calibration

Hello all,
I am attempting a 40GHz calibration. I previously tried calibrating with 1000um pitch G S S G differential
probes without success. I think at 40GHz there is no resonance, or planar waves on the cal substrate.
Crosstalk is the main problem; I will try calibrating with <500um probes. Is there a way to
measure/calculate this crosstalk? How can I verify this hypothesis?  Right now, I define a good cal as
return loss below 20dB, is  there any other information I can use in determining a good cal?

Thank you!
-Arnav

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Ajay Dhingra | 25 Oct 20:55 2014
Picon

Fw: AC or DC Coupling Selection


-------- Original Message --------
Subject: Re: [SI-LIST] AC or DC Coupling Selection
From: Ajay Dhingra <ajay.dhingra@...>
To: Orin Laney <olaney@...>
CC: si-list@...

The data rates are around 6Ghz and 8b/10b is also there.
I mainly want to understand how Vcm difference has impact specially in DC Coupled interface and what are
potential reasons of Vcm differences.

What kind of implementations in Rx helps mitigate the Vcm difference problem.

Ajay

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Ajay Dhingra | 25 Oct 18:54 2014
Picon

AC or DC Coupling Selection

Hi All
Could anyone put some light on what criteria should be used to decide for a serial interface that
1. It should use AC or DC coupling
2. How to decide the common mode voltage.
3. how much should be the difference between Vcm of Tx and Rx. What criteria determines this difference in
multi GHz range.

Thanks
Ajay

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Doug Smith | 24 Oct 01:36 2014

switch mode power supply noise (class D amps as well)

Hi All,

I am going to present a one hour web session next Thursday, October 30th 
on a problem a lot of engineers have encountered.

Here are the details:

Next presentation: Thursday,  October 30th  <at>  10:00 a.m. Pacific time: 
Switching Circuits in Electronic Systems (Problems and solutions for the 
design engineer)

Switch mode power supplies (at system and board level) and other 
switching devices like class D amplifiers and pulse width modulation 
controlled devices have caused a lot of noise problems over the years 
resulting in a lot of weekends and evenings at work for engineers. This 
webinar will discuss the four modes of noise generation in switching 
circuits and how to deal with them. The fourth mode is not well known 
yet causes many of the problems due to switching circuits and is not 
covered in specifications.

Did you know that switching circuits generate noise that can cause 
intermittent operation of systems with problems occurring once per hour 
or even less frequently? How this can happen will be discussed and ways 
of debugging this type of problem will be covered. Examples will be 
discussed where switching noise generated in one part of a system caused 
problems in remote parts of the system, including one case where a hard 
drive was corrupted from a meter away and the drive was not even 
connected to the noisy supply causing the problem.

Recommendations from system level to PCB level are given, right down to 
(Continue reading)

Chen, Sherman | 22 Oct 20:47 2014

Re: time domain simulation w/ PDN planes

Nilesh,

Thanks for the paper. My question is regarding how to model the coupling from PDN to the transmission line,
not the transmitter or the receiver chip. The coupling effect across the whole span of the tline need to be
calculated. To do that in circuit simulator what I can think of is to use a multi-port sparam which's ports
are extracted btw the locations along the tline and the VRM, at the interval of say lambda/20. At each
location the port need to be set at four points: DP+, DP-, Vcc on power plane, and GND on the ground plane. 
Any comments on this thought? 

-----Original Message-----
From: nilesh_kamdar2@...
[mailto:nilesh_kamdar2@...] 
Sent: Wednesday, October 22, 2014 11:38 PM
To: si-list@...; Chen, Sherman
Subject: RE: [SI-LIST] time domain simulation w/ PDN planes

Sherman

If I understood your question correctly, I believe that this simulation can be handled in ADS. To do this you
need to create an SI/PI model of the physical interconnects that includes all the power/ground planes and
also signal lines. Then you can apply specific time domain stimulus in a Transient simulation. 

Here is a DesignCon 2014 paper that explains how we can do this:

Paper:
http://cp.literature.agilent.com/litweb/pdf/5991-4083EN.pdf

Slides:
http://www.xilinx.com/events/designcon2014/11_WE5Slides_Touchstonev2SIPISParameterModels.pdf

(Continue reading)


Gmane