Solid State Scientific Corporation

Tedd Stickel

A crystal controlled oscillator has a substantially stable frequency in an environment of wide power supply potential changes. A first CMOS device of a pair is coupled to a crystal network and operates as a substantially small signal linear amplifier. A second CMOS device of the pair forms a constant current source for the first device by means of a plurality of diodes coupled in series circuit between two terminals of the second device to produce a substantially constant biasing potential for the second device only when the potential of the power supply exceeds the value of the diode drop potentials. In this manner, the voltage across the oscillator is relatively independent of power supply voltage changes to provide frequency stability over those changes.

Constant current source stabilized semiconductor oscillator

A high speed dynamic CMOS flip-flop system having a master and a slave section each of which have a different total propagation delay. Asymmetrical clock signals are applied to the master and slave sections with one cycle portion of each clock signal turning on the master section and the other cycle turning on the slave section. Each cycle portion has a time duration substantially equal to the total propagation delay of its respective master and slave section. In this manner, the duty cycle of the clock signal cycle is matched to the ratio of the propagation delays of the master and slave sections.

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Chalfont, PA, United States of America

Tedd Stickel