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Charge-Pump with a Regulated Cascode Circuit for Reducing Current Mismatch in PLLs
Phase-locked loop (PLL) charge-pump phase/frequency detector (PFD) regulated cascode
2008/1/30
The charge-pump circuit is an important component in
a phase-locked loop (PLL). The charge-pump converts Up and Down
signals from the phase/frequency detector (PFD) into current. A
conventional CMO...