[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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