VCO bias circuit with low supply and temperature sensitivity

Details VCO bias circuit with low supply and temperature sensitivity VCO bias circuit with low supply and temperature sensitivity

1994-09-02

1995-08-08

Mis, David

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

331 57, 331186, 327538, 327543, H03B 504, H03B 524, H03K 3011, H03L 100

Patent

active

054402778

ABSTRACT:
A novel bias generator circuit for a voltage controlled oscillator is described. The bias generator allows the VCO frequency to be made essentially independent of the supply voltage and temperature.

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patent: 5180995 (1993-01-01), Hayashi et al.
patent: 5291071 (1994-03-01), Allen et al.
P. Gray et al, "Analysis & Design Of Analog Integrated Circuits", John Wiley & Sons, Inc., 1977, pp. 322-331.
Ian A. Young et al, "A PLL Clock Generator with 5 TO 110 MHz of Lock Range for Microprocessors", IEEE Journal of Solid State Circuits, vol. 27, No. 11, Nov. 1992, pp. 1599-1607.
Eric A. Vittoz et al, "A Low-Voltage CMOS Bandgap Reference", IEEE Journal of Solid State Circuits, vol. SC-14, No. 3, Jun. 1979, pp. 573-577.
S. K. 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.
J. G. Maneatis et al, "Precise Delay Generation Using Coupled Oscillators", ISSCC 93/Analog Techniques/Paper TA 7.5, Feb. '93, Digest Of Technical Papers, pp. 118-119.

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