[SI-LIST] Re: For SI beginner

Hello, John,

Cadence SpecctraQuest (and most EDA tools)  includes a tutorial and help
files with the product.  You might need to ask your SysAdmin to install them
from the CD again if they have been removed from disk.

You could also look at the IBIS web site to gain a better understanding of
how and why IBIS is used for I/O simulation.  The book by Eric Bogatin that
Steve recommended is good, and can help you better understand the IBIS
"Summit" papers.

There are also IBIS and SI seminars for "newbies".  Some of these are
offered free over the web, other charge for in-person attendance (sometimes
with hands-on labs).

Best regards,
Lynne


"IBIS training when you need it, where you need it."

Dr. Lynne Green
Green Streak Programs
http://www.greenstreakprograms.com
425-788-0412
lgreen22@xxxxxxxxxxxxxx


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of steve weir
Sent: Wednesday, August 24, 2005 9:55 PM
To: johnnfaq@xxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: For SI beginner

John, Dr. Eric Bogatin's book "Signal Integrity Simplified" is a great place
for you to start.  There are many other excellent books out there, and to
the extent that you can afford them or find them in a library, you should
study them thoroughly.

There are some free, as well as paid web classes on Eric's web-site
"bethesignal.com".

Cadence does offer tutorials in SQ.  If you have trouble locating them, just
call your Cadence field representative.

Steve.
At 09:44 PM 8/24/2005 -0700, johnn william wrote:
>Thanks to all for showing interest in clearing my queries regarding RF 
>board Vs High speed board :-)
>
>I am doing second year of my engineering and like to concentrate more 
>on Signal behaviour.
>With the response from all it really helps me to stretch further my
ambition.
>
>But still I need some guidance from expertise to make by basic stronger.
>
>Questions:
>
>We study more on types of signals, fourier transforms,modulation on 
>basic circuits but when I see some circuits downloaded its appears more 
>complex say schematic having DDR signals. But on modelling using 
>spectra quest it just asks to attach the IBIS models and the signals 
>environment and on analysing it gives me the wave form from driver to 
>receiver with overshoot and undershoot.I feel it behaves like a robot 
>feed in and get output.But I see lot of parameters like temp,dielectric 
>constant,impedance involves in circuit behaviour but how these behaves 
>practically? how it related with one another? how actually EM waves 
>propagate on transmission like with all obstacles like cross talk,impedance
mismatch, with various types of load?.
>Basically I want to apply my learning to actual reality.
>Please provide me some information like any online seminars or books or 
>URL which focuss the basics of signal behaviour.
>I feel sometimes my question will be more basic and awful (which my 
>professor some times says and replies back "clear it when you feel it 
>as wrong implementation costs others life/time and that's Electronics")
>
>I have book named "The SI simplified" and its with me as a guidance for 
>now.I enjoyed as it explains  more on basics.Spectra quest for doing my
labs.
>
>I also suggest to the Admin/Group to put some training session where 
>you have some small circuit and the models explaning the circuits 
>behaviour why,How and When it behaves Good/Bad. And the new user like 
>me can download for studying.
>Awaiting to have your comments and suggestion.
>
>Thank you for all once again.
>
>- John.
>
>
>
>
>Andrew Burnside <Andrew.Burnside@xxxxxxxxxxxxxxxxxxx> wrote:
>Glenn
>
>Fair enough, but these bandwidths are still much greater than the 20kHz 
>cited. Group delay is still a problem, maybe not as bad as a 10GHz 
>digital system, but still worth consideration, especially if running 
>higher order modulation schemes.
>
>As an illustration of larger RF bandwidths, electronics warfare systems 
>can easily have 10-20GHz of received bandwidth per antenna. The RF 
>front end then may channelise this, to more manageable bandwidths e.g 
>1-2GHz, but somewhere on the RF board there will still be the full
bandwidth.
>
>Andrew
>
>
>________________________________
>
>From: glenn_wood@xxxxxxxxxxx [mailto:glenn_wood@xxxxxxxxxxx]
>Sent: Wed 24/08/2005 18:33
>To: Andrew Burnside; si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Re: RF board Vs High speed board ... RF amplifiers
>
>
>
>Does anyone know of any off the shelf parts that can *linearly* amplify 
>Ultra Wideband Signals and with a F3dB as high as 10GHz? Actually, in 
>this case, the carrier can be considered to be 2.5GHz and the bandwidth 
>extends down to 500MHz (or 0.2 of carrier).
>
>Thanks
>
>-----Original Message-----
>From: si-list-bounce@xxxxxxxxxxxxx
>[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Andrew Burnside
>Sent: Wednesday, August 24, 2005 11:05 AM
>To: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Re: RF board Vs High speed board
>
>
>Hi Lynne/John
>
>RF signals are not necessarily narrowband.
>For example, Ultra Wideband Signals (becoming more common these days) 
>have a bandwidth of at least 0.25 of the carrier frequency.
>
>The other case that wideband RF is often seen on boards these days is 
>in Direct Digital Downconversion architectures. You might see in excess 
>of 1GHz going into ADCs, and that's only the IF! In this case the 
>wideband IF often contains several signals.
>
>Usually some steps have been taken by the implementer of an RF system 
>to limit the bandwidth, similar to pre-emphasis and de-emphasis in a 
>high speed digital system. So usually the RF board will have slightly 
>more rounded signals, but these may have higher rms power than the high 
>speed digital system, especially in a PA subsystem.
>
>Regards
>
>Andrew
>
>
>________________________________
>
>From: si-list-bounce@xxxxxxxxxxxxx on behalf of Lynne D. Green
>Sent: Wed 24/08/2005 17:27
>To: johnnfaq@xxxxxxxxx; si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Re: RF board Vs High speed board
>
>
>
>Hello, John,
>
>RF signals are "narrow band", i.e. modulation is superimposed on a 
>carrier frequency. The modulation bandwidth is significantly smaller 
>than the carrier frequency (your car radio is a good example - carrier 
>is around 100kHz, bandwidth is around 20kHz.) RF requires filtering to 
>remove the carrier and recover the signal.
>
>High-speed signals are "wide band", i.e. they have significant 
>frequency content from DC to hundreds of times the modulation rate. For 
>an ideal interconnect, filtering is not required to recover the original
signal.
>(And, although rates are usually given in MHz, they really mean Mbaud.)
>
>Best regards,
>Lynne
>
>
>"IBIS training when you need it, where you need it."
>
>Dr. Lynne Green
>Green Streak Programs
>http://www.greenstreakprograms.com
>425-788-0412
>lgreen22@xxxxxxxxxxxxxx
>
>-----Original Message-----
>From: si-list-bounce@xxxxxxxxxxxxx 
>[mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of johnn william
>Sent: Wednesday, August 24, 2005 4:19 AM
>To: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] RF board Vs High speed board
>
>Hi All,
>
>Please anyone in group clarify the difference in handling the RF board 
>compared to normal High speed boards.
>
>Thanks in advance.
>
>John
>
>
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