From: selvaraj subramanian ([email protected])
Date: Sun May 13 2001 - 23:29:10 PDT
Hi Rede,
Thanks for your mail.
Here is the info of my topology.
1. Clock Frequency: 66MHz
2. Clock Amplitude : 3.3V
3. Type of Driver : LVTTL
4. Number of Drops : 6
5. Z0 of trace : 50 ohms
6. Length of each link : 3 inches
7. Type of inputs : LVTTL
thanks in advance.
regards,
Selva
----- Original Message -----
From: Rede, James
To: '[email protected]'
Sent: Friday, May 11, 2001 6:47 PM
Subject: RE: [SI-LIST] : Daisy Chain topology - termination schemes
Hi Selva,
I may be able to help you with your daisy-chain design.
I have done a lot of work with this topology and know a few tricks.
Please give me the following details:
1) Clock Frequency _______________
2) Clock Amplitude________________
3) Type of Driver__________________
4) Number of Drops________________
5) Zo of trace_____________________
6) Length of Each Link_____________
7) Type of Inputs__________________
Once I have this data, I will be able to tell what may work.
Best Regards,
JJ Rede
Taqua Systems
Hyannis MA
-----Original Message-----
From: selvaraj subramanian [mailto:[email protected]]
Sent: Friday, May 11, 2001 2:17 AM
To: [email protected]
Subject: [SI-LIST] : Daisy Chain topology - termination schemes
Hello all,
My simulations using XTK for most of the daisy chain topology is showing non-monotonicity on both the edges of the data/signal. I tried different termination strategies to remove the kink. But couln't.
What I saw was that the worst affected load is the first load from the driver?
Suggest me how to remove the non-monotonicity while using the daisy chain topology and is it ok if I bring that kink within the threshold levels.
thanks in advance.
regards,
Selva
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