Phase locked loop with floating capacitor boost circuit

Details Phase locked loop with floating capacitor boost circuit Phase locked loop with floating capacitor boost circuit

2007-07-24

2007-07-24

Pascal, Robert (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S017000, C331S025000, C331S00100A, C327S157000, C327S536000

Reexamination Certificate

active

11121910

ABSTRACT:
Charge from a charge pump of a PLL is dumped to a loop filter of the PLL. The dumped charge is temporarily stored in a capacitor, between the charge pump and the loop filter. A voltage of the capacitor is shifted, while temporarily storing the dumped charge. Other embodiments are also described and claimed.

REFERENCES:
patent: 4987373 (1991-01-01), Soo
patent: 5524114 (1996-06-01), Peng
patent: 6342818 (2002-01-01), Segawa et al.
patent: 6525613 (2003-02-01), Cyrusian
patent: 6828654 (2004-12-01), Tam et al.

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