[ibis-macro] Re: Analog Buffer Model Inside DLL

  • From: "Todd Westerhoff" <twesterh@xxxxxxxxxx>
  • To: <DBanas@xxxxxxxxxx>, <wkatz@xxxxxxxxxx>, <ckumar@xxxxxxxxxxx>, <gedlund@xxxxxxxxxx>, <ibis-macro@xxxxxxxxxxxxx>
  • Date: Wed, 12 Dec 2012 15:47:27 -0500 (EST)

. and the insertion loss.

 

. and if the network characterization of the channel is invalid, so is
everything else.

 

Todd.

 

Todd Westerhoff

VP, Software Products

Signal Integrity Software Inc. . www.sisoft.com

6 Clock Tower Place . Suite 250 . Maynard, MA 01754

(978) 461-0449 x24  .  twesterh@xxxxxxxxxx

 

"I want to live like that"

                                             -Sidewalk Prophets

 

From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of David Banas
Sent: Wednesday, December 12, 2012 2:09 PM
To: 'wkatz@xxxxxxxxxx'; 'ckumar@xxxxxxxxxxx'; 'gedlund@xxxxxxxxxx';
'ibis-macro@xxxxxxxxxxxxx'
Subject: [ibis-macro] Re: Analog Buffer Model Inside DLL

 

If the Analog Buffer is inside the DLL, then the analog return loss of the
buffer is not correctly handled in the impulse response characterization
of the channel.

 

?

 

 

From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Walter Katz
Sent: Wednesday, December 12, 2012 10:32 AM
To: ckumar@xxxxxxxxxxx; gedlund@xxxxxxxxxx; ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Re: Analog Buffer Model Inside DLL

 

If the Analog Buffer is inside the DLL, then the analog return loss of the
buffer is not correctly handled in the impulse response of the channel.

 

Walter

 

From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Kumar Keshavan
Sent: Wednesday, December 12, 2012 1:18 PM
To: gedlund@xxxxxxxxxx; ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Re: Analog Buffer Model Inside DLL

 

Why not? As long as the dll is isolated from the analog front end , the
dll itself can be modeled any way you want

 

 

From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Gregory R Edlund
Sent: Wednesday, December 12, 2012 12:55 PM
To: ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Analog Buffer Model Inside DLL

 

What nasty things are likely to happen if someone puts the analog buffer
model inside the DLL?  At the very least, the impulse response will be
incorrect.

Are there any circumstances under which this can work correctly?

Greg Edlund
Senior Engineer
Signal Integrity and System Timing
IBM Systems & Technology Group
3605 Hwy. 52 N  Bldg 050-3
Rochester, MN 55901

 

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