Charge pump having reduced switching noise

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing

Reexamination Certificate

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Details

C327S118000

Reexamination Certificate

active

06954090

ABSTRACT:
A low power charge pump is provided that has complementary transistors capable of isolating switching noise from the input switching transistors. The charge pump uses charged currents that are matched in both magnitude and time to reduce switching noise in the output of the charge pump. The charge pump is also designed for use in a phase lock loop.

REFERENCES:
patent: 4931749 (1990-06-01), Walters
patent: 5066870 (1991-11-01), Kobatake
patent: 5233314 (1993-08-01), McDermott et al.
patent: 5392205 (1995-02-01), Zavaleta
patent: 5491439 (1996-02-01), Kelkar et al.
patent: 5629650 (1997-05-01), Gersbach et al.
patent: 5646563 (1997-07-01), Kuo
patent: 5692164 (1997-11-01), Pantelakis
patent: 5703511 (1997-12-01), Okamoto
patent: 5722052 (1998-02-01), Abdi et al.
patent: 5740213 (1998-04-01), Dreyer
patent: 5751186 (1998-05-01), Nakao
patent: 5767736 (1998-06-01), Lakshmikumar et al.
patent: 5798660 (1998-08-01), Cheng
patent: 5870003 (1999-02-01), Boerstler
patent: 5886551 (1999-03-01), Narahara
patent: 5889437 (1999-03-01), Lee
patent: 5920233 (1999-07-01), Denny
patent: 5936445 (1999-08-01), Babanezhad et al.
patent: 5936455 (1999-08-01), Kobayashi et al.
patent: 5955904 (1999-09-01), Kawasaki
patent: 5994968 (1999-11-01), Iravani et al.
patent: 6011822 (2000-01-01), Dreyer
patent: 6028473 (2000-02-01), Kamei et al.
patent: 6028780 (2000-02-01), Chang
patent: 6058033 (2000-05-01), Williams et al.
patent: 6064251 (2000-05-01), Park
patent: 6067336 (2000-05-01), Peng
patent: 6075406 (2000-06-01), Lee et al.
patent: 6172535 (2001-01-01), Hopkins
patent: 6194920 (2001-02-01), Oguri
patent: 6198320 (2001-03-01), Boerstler
patent: 6215336 (2001-04-01), Ohashi
patent: 6229345 (2001-05-01), Kirkland et al.
patent: 6292061 (2001-09-01), Qu
patent: 6320426 (2001-11-01), Shih
patent: 6472914 (2002-10-01), Gu et al.
“Fully—Integrated CMOS Phase-Locked Loop with 15 to 240 MHz Locking Range and ±50ps Jitter,” Ilya Novof, John Austin, Russ Chmela, Todd Frank, Ram Kelkar, Ken Short, Don Strayer, Mark Styduhar, Steve Wyatt,ISSCC95/Session6/Digital Design Elements/Paper TA 6.5.
“Digital Clocks and Latches, ” Ian Young,ISSCC96/Feb. 9, 1996/Sea Cliff/8:30 a.m..

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