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analog/digital PLL

 
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santhoshv78



Joined: 22 Jun 2004
Posts: 72


Post27 Jul 2004 10:43   analog/digital PLL

What is the main difference between thse two.
The well known PLL architecture(PFD,CP,Loop filter,VCO) is Analog PLL or Digital PLL.
How does this differentiate in applications..where exactly the Digital PLL and Analog PLL are used.

thanks
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nathan



Joined: 17 May 2001
Posts: 307
Helped: 2


Post27 Jul 2004 12:41   Re: analog/digital PLL

Analog PLL has a Multiplier type PD while Digital one has PFD, JK or XOR circuit.

nathan
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santhoshv78



Joined: 22 Jun 2004
Posts: 72


Post28 Jul 2004 2:17   Re: analog/digital PLL

where are these analog PLLs are used.
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