Bang-bang architecture

Oscillators – With frequency adjusting means – With voltage sensitive capacitor

Reexamination Certificate

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Details

C331S034000, C331S03600C, C331S045000, C331S048000, C331S1170FE, C331S025000, C331S17700V, C331S179000, C375S376000

Reexamination Certificate

active

07612625

ABSTRACT:
In one embodiment, the present invention includes an apparatus having a voltage controlled oscillator (VCO) to generate a first clock signal having a frequency controlled by a bias current coupling ratio of first and second bias currents, and a control circuit coupled to the VCO to generate a first pair of control signals to adjust the bias current coupling ratio. Other embodiments are described and claimed.

REFERENCES:
patent: 5187450 (1993-02-01), Wagner et al.
patent: 5872488 (1999-02-01), Lai
patent: 5973573 (1999-10-01), Iravani et al.
patent: 2005/0062548 (2005-03-01), Lim et al.
patent: 2006/0067710 (2006-03-01), Liu et al.
patent: 2007/0229173 (2007-10-01), Kelkar et al.
patent: 10-2004-0077304 (2004-09-01), None
R. Walker, “Designing Bang-Bang PLLs for Clock and Data Recovery in Serial Data Transmission Systems,” Phase-Locking in High-Performance Systems From Devices to Architectures. Edited by Behzad Razavi, pp. 34-45. John Wiley & Sons, Inc., 2003.
J. E. Rogers, and J. R. Long, “A 10-Gb/s CDR/DEMUX With LC Delay Line VCO in 0.18-um CMOS,” IEEE J. Solid-State Circuits, vol. 37, No. 12, pp. 1781-1789, Dec. 2002.
H. Werker, S. Mechnig, C. Holuigue, etc., “A 10Gb/s SONET-Compliant CMOS Transceiver with Low Cross-Talk and Intrinsic Jitter,” ISSCC Dig. Tech. Papers, pp. 172-520, Feb. 2004.
S. Li, I. Kipnis, and M. Ismail, “A 10-GHz CMOS Quadrature LC-VCO for Multirate Optical Applications,” IEEE J. Solid-State Circuits, vol. 38, No. 10, pp. 1626-1634, Oct. 2003.
PCT/US2009/032959 International Search Report with Written Opinion of the International Search Authority Mailed Jun. 30, 2009 in a related application.

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