From: [email protected]
Date: Mon Nov 08 1999 - 07:48:30 PST
Spread spectrum clocking and PLL's can be compatible. It is used in most PC's
built today.
It is important not to use it for clocking a network or other functions that
requires a fixed frequency.
However it is possible to design the system so that the network front end
frequency is fixed but the
noisy processor section can use spread spectrum clocking.
For more information see:
1) http://www.lexmark.com/sscg/
"Design Considerations of Phase-Locked Loop Systems for Spread Spectrum Clock
Generation Compatibility"
2) http://developer.intel.com/ial/sdt/
Dr. Keith Hardin
Consulting Engineer
Lexmark International Inc.
rbmccammon%[email protected] on 11/08/99 09:22:24 AM
Please respond to si-list%[email protected]
To: si-list%[email protected]
cc: (bcc: Keith Hardin/Lex/Lexmark)
Subject: RE: [SI-LIST] : Micro Noise
Chris Cheng wrote:
> have u look into using spread spectrum clock source instead of crystals ?
Don't all the PLL's in chips these days make
spread spectrum clocking untenable?
**** To unsubscribe from si-list: send e-mail to [email protected]. In
the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list
archives are accessible at http://www.qsl.net/wb6tpu/si-list ****
**** To unsubscribe from si-list: send e-mail to [email protected]. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list ****
This archive was generated by hypermail 2b29 : Tue Feb 29 2000 - 11:39:42 PST