Low jitter voltage controlled oscillator (VCO) circuit

Details Low jitter voltage controlled oscillator (VCO) circuit Low jitter voltage controlled oscillator (VCO) circuit

1995-01-24

1996-12-03

Mis, David

Oscillators

Ring oscillators

331 34, 331177R, 331186, H03B 524, H03L 7099

Patent

active

055812163

ABSTRACT:
A voltage controlled oscillator circuit includes a predetermined number of interconnected differential comparator cells having source connected p-channel and n-channel transistors, a biasing transistor connected to the sources of the p-channel or n-channel transistors, and clamping circuits connected to said first and second n-channel transistors. The voltage controlled oscillator circuit further includes filter circuitry for filtering the input currents to the biasing transistor.

REFERENCES:
patent: 5081429 (1992-01-01), Atriss et al.
patent: 5175512 (1992-12-01), Self
patent: 5355097 (1994-10-01), Scott et al.
patent: 5440277 (1995-08-01), Ewen et al.
patent: 5485126 (1996-01-01), Gersbach et al.

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