Charge pump with transient current correction
An improved charge pump used in a phase-locked loop includes transient current correction capability by adding a canceling capacitance for each parasitic capacitance associated with a switching device in a charge pump. For each transient current component flowing through the parasitic capacitance, a...
Saved in:
| Main Author | |
|---|---|
| Format | Patent |
| Language | English |
| Published |
15.04.2004
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | An improved charge pump used in a phase-locked loop includes transient current correction capability by adding a canceling capacitance for each parasitic capacitance associated with a switching device in a charge pump. For each transient current component flowing through the parasitic capacitance, a canceling capacitance is implemented to create a canceling transient current component in the opposite direction such that it cancels out the transient current component. Preferably, an additional switching device is added to implement such a canceling capacitance for each parasitic capacitance. |
|---|