[SI-LIST] Resend: Adding uncertainty to signal sources

From: "Jim Antonellis" <janton@xxxxxxxxxxxxxxxxxx>
To: <si-list@xxxxxxxxxxxxx>
Date: Fri, 29 Oct 2004 19:00:36 -0400
**Sorry for the duplicates.... my email was recently changed**

Hi Tom,

You can AC couple a noise source to the LFSR.

Jim

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Jim Antonellis      janton@xxxxxxxxxxxxxxxxxx
Sandburst Corp   www.sandburst.com
Office: 978.689.1669=20
Cell: 978.618.4745

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-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Tom Strout
Sent: Friday, October 29, 2004 2:56 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Adding uncertainty to signal sources


Hi all - I'm  a new member of SI mailing list and would like to pose a =
question. I'm wondering if there is a way to add jitter or a variable =
amount of uncertainty to the rising/falling edges of a signal source =
such as 'pulse' or in my case the built-in PBRS function (lfsr). I'm =
attempting to characterize a valid data window for a DDR2 memory =
interface, and would like to introduce more uncertainty into my source =
than is currently being generated by the output buffer of my SDRAM =
model.
Regards,
Tom R Strout
Staff Hardware Engineer
Hifn Inc.
111 Speen St., Suite 210
Framingham, Ma. 01701
508-620-1158 x119

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-
Jim Antonellis      jim.antonellis@xxxxxxxxxxxxx
Sandburst Corp   www.sandburst.com
Office: 978.689.1669=20
Cell: 978.618.4745

This message and any attachments are Confidential and may be Legally
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reliance on this message is prohibited and may be unlawful.
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[SI-LIST] Resend: Adding uncertainty to signal sources

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