Where to find articles on charge pump phase-locked loops

[oufa]

hi every one
i have acertain task about writing a brief research about charge current pll and i don't find any brief research in google search or yahoo or whatever.
can anyone tell me where to find such good brief articles .
thanks for helping me

 

[Bob S]

Please give more detail on your specific current PLL application. Do you want to generate an analog voltage proportional to the current, or a frequency proportional to the current, or what?

Bob S

 

[Bob S]

Please give more detail on your specific current PLL application. Do you want to generate an analog voltage proportional to the current, or a frequency proportional to the current, or what?

Bob S