Oscillators – Ring oscillators
Patent
1996-03-29
1998-05-05
Grimm, Siegfried H.
Oscillators
Ring oscillators
331177R, H03B 500
Patent
active
057480508
ABSTRACT:
A voltage controlled oscillator (VCO) having a generally linear transfer characteristic across a wide frequency range of operation. The VCO is comprised of a voltage-to-current converter (V-I) and a current-controlled oscillator (ICO). A linearization of the output response of the VCO is accomplished by proper selection of the output responses of the V-I and ICO circuits, where the V-I portion is designed to have an inverse nonlinearity response as compared to the nonlinearity response of the ICO portion of the VCO. The combined effect is a linear response for the VCO. A nonlinear V-I characteristic can be achieved by adding several piecewise linear responses together to produce a combined nonlinear response.
REFERENCES:
patent: 3397367 (1968-08-01), Steel et al.
patent: 3531739 (1970-09-01), Groves
patent: 3546617 (1970-12-01), Westwood
patent: 3886485 (1975-05-01), Takahashi
patent: 3904988 (1975-09-01), Hsiao
patent: 4047126 (1977-09-01), Anderson
patent: 4230953 (1980-10-01), Wilcox
patent: 4254382 (1981-03-01), Keller et al.
patent: 4370629 (1983-01-01), Martin
patent: 4388596 (1983-06-01), Yamashita
patent: 4442412 (1984-04-01), Smith et al.
patent: 4492934 (1985-01-01), Sugimoto
patent: 4568888 (1986-02-01), Kimura et al.
patent: 4700285 (1987-10-01), Szepesi
patent: 4853654 (1989-08-01), Sakurai
patent: 4879530 (1989-11-01), Wilhelm et al.
patent: 4890072 (1989-12-01), Espe et al.
patent: 4918404 (1990-04-01), Vitiello et al.
patent: 4935706 (1990-06-01), Schenberg
patent: 4975662 (1990-12-01), Takeuchi
patent: 4988955 (1991-01-01), Horie
patent: 5028888 (1991-07-01), Ray
patent: 5041799 (1991-08-01), Pirez
patent: 5070311 (1991-12-01), Nicolai
patent: 5081429 (1992-01-01), Atriss et al.
patent: 5105169 (1992-04-01), Yamazaki et al.
patent: 5121086 (1992-06-01), Srivastava
patent: 5136260 (1992-08-01), Yousefi-Elezei
patent: 5142249 (1992-08-01), Hirotomi
patent: 5198784 (1993-03-01), Fenk
patent: 5208557 (1993-05-01), Kersh, III
patent: 5212459 (1993-05-01), Ueda et al.
patent: 5250913 (1993-10-01), Gleichert et al.
patent: 5272453 (1993-12-01), Traynor et al.
patent: 5278522 (1994-01-01), Atriss et al.
patent: 5285114 (1994-02-01), Atriss et al.
patent: 5285173 (1994-02-01), Reynolds
patent: 5300898 (1994-04-01), Chen et al.
patent: 5302920 (1994-04-01), Bitting
patent: 5331295 (1994-07-01), Jelinek et al.
patent: 5379001 (1995-01-01), Hedtke
patent: 5477198 (1995-12-01), Anderson et al.
patent: 5483195 (1996-01-01), Brown
Kurt M. Ware et al.; A 200-Mhz CMOS Phase-Locked Loop with Dual Phase Detectors; Dec., 1989; pp. 1560-1568 IEEE Journal of Solid State Circuits, vol. 24, No. 6.
Deog-Kyoon Jeong et al.; Design of PLL-Based Clock Generation; Apr., 1987; pp. 255-261, IEEE Journal of Solid-State Circuits, vol. SC-22, No. 2.
A Low Jitter 5 Mhz to 180 Mhz Clock Synthesizer for Video Graphics; reza Shariatdoust et al.; IEEE 1992 Custom Integrated Circuits Conference; Mar. 5, 1992; pp. 24.2.1-24.2.5.
Bailey Wayne P.
Grimm Siegfried H.
Symbios Logic Inc.
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