[SI-LIST] Spread Spectrum Clock Synthesizers

HI,

Does any body has experience in using Spread Spectrum Clock Synthesizers/
Driver (similar to CY2287).
http://eent3.sbu.ac.uk/units/ade/warpdocs/CDrom/CDROM/DOCS/PRODUCT/CLOCK/CY2
287.PDF

My question is what happens when a PLL (CY2287) output is fed into another
PLL (inside Motorola MPC8270ZU microprocessor) ?

Spread Spectrum Clock Synthesizers manufacturer claim that they reduce EMI
as compared to non-modulated parts.

Also what specifications should I look at while selecting a Spread Spectrum
Clock Synthesizer to meet my system requirement (i.e., MPC8270ZU).

Thanks,
shiraz


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of mahamud khandokar
Sent: Friday, April 30, 2004 3:42 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Ansoft Nexxim? versus Hspice


Dear All,

 

can anyone tell me which one is the best for simulation: 

 

Ansoft Nexxim(tm)  or  Hspice

 

please tell me something positive/negetive ,if anyone used this new software
before.

 

I need to buy one of them for my company. we are PCB design based company.

 

Thanks.

 

Misty

 


                
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