Re: [SI-LIST] : SSC

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From: Raymond.Leung@qsa.idt.com
Date: Wed Mar 15 2000 - 19:20:15 PST


Jeff,

I don't want to get into trouble. Anyway, if there are two
identical PFDs pumping the same charge to two identical
capacitors, then the voltage difference between the
caps is ideally zero.

Raymond

Jeff <jeffd323@yahoo.com> on 15/03/2000 16:49:01

Please respond to si-list@silab.eng.sun.com

To: si-list@silab.eng.sun.com
cc: (bcc: Raymond Leung/QSA/AU)

Subject: Re: [SI-LIST] : SSC

--- Raymond.Leung@qsa.idt.com wrote:
> There are some other techniques to solve the dead
> band
> problem. among them a fully balanced diffferential
> PLL will
> do a good job. Several ten ps jitter should not be
> a problem.

Can you explain this?
Wouldn't a fully balanced diffferential phase/freq
detector still go "tri-state" when locked?

Jeff

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