CMOS frequency synthesizer

Details CMOS frequency synthesizer CMOS frequency synthesizer

1994-06-02

1995-06-06

Mis, David

Oscillators

Automatic frequency stabilization using a phase or frequency...

Afc with logic elements

331 8, 331 17, 331 25, 327 3, 327 40, 327107, H03L 100, H03L 7089, H03L 718

Patent

active

054226031

ABSTRACT:
A fully-symmetric high-speed CMOS frequency synthesizer which exhibits minimum dead-zone effects is disclosed. A fully-symmetric phase-frequency detector and a fully differential charge-pump filter combined with a voltage-controlled oscillator are key elements of the invention described.

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patent: 5311149 (1994-05-01), Wagner et al.
Mehmet Souyer, et al "Frequency Limitations of a Conventional Phase-Frequency Detector", IEEE Journal of Solid-State Circuits, vol. 25, No. 4, Aug. 1990, pp. 1019-1022.
S. Khursheed Enam, et al "NMOS IC's for Clock and Data Regeneration in Gigabit-per-Second Optical-Fiber Receivers", IEEE Journal of Solid-State Circuits, vol. 27, No. 12, Dec. 1992 pp. 1763-1774.

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