Crystal oscillator circuit with feedback control

Details Crystal oscillator circuit with feedback control Crystal oscillator circuit with feedback control

1983-11-29

1985-10-01

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331109, 331183, H03B 530

Patent

active

045448973

ABSTRACT:
An oscillating circuit includes first and second stage amplifiers, a feedback circuit formed of a capacitor and a resistor and connected between the output terminal of the second stage amplifier and the input terminal of the first stage amplifier and a crystal resonator having a predetermined resonance frequency and being connected to the first stage amplifier, the total gain of the oscillating circuit being selected so that the oscillating circuit initiates its oscillation only when the crystal resonator is connected to the first stage amplifier.

REFERENCES:
patent: 3321715 (1967-05-01), Bloch
patent: 3324415 (1967-06-01), Sheffet
patent: 4193046 (1980-03-01), Chiba
patent: 4358742 (1982-11-01), Ferriss

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