[SI-LIST] Re: Number of bits to simulate
- From: "Todd Westerhoff" <twesterh@xxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Tue, 06 Dec 2011 09:58:30 -0500 (EST)
... and be run long enough to capture the majority of the ISI from the
combined behavior of the TX output, channel and RX termination network.
N'est-ce pas?
Todd.
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Todd Westerhoff
VP, Software Products
SiSoft
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-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of steve weir
Sent: Tuesday, December 06, 2011 9:32 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Number of bits to simulate
This subject comes up periodically. Your PRBS pattern length should
capture the bandwidth limits of the data that will actually traverse the
channel.
Steve.
On 12/6/2011 6:01 AM, Roopesh Badala wrote:
> Hello Experts,
> We are simulating a LVDS channel of 800Mbps datarate using ibis
> models& cadence channel analysis tool utilities.
>
> We are struck at selecting number of bits for simulation.
>
> How do you decide on the PRBS pattern length for simulation.
>
> with 32 bits the eye opening is good. but for higher pattern length
> the eye opening is bad.
>
> Is there any relation between the channel length or data rate to
> number of bits to simulate.
>
> kindly advise.
>
> Thanks in advance
>
> Roopesh.
>
>
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--
Steve Weir
IPBLOX, LLC
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Reno, NV 89501
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