Drift-equalized, multi-frequency oscillator

Details Drift-equalized, multi-frequency oscillator Drift-equalized, multi-frequency oscillator

1984-04-02

1986-02-25

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331 96, 331117R, 331177V, H03B 518

Patent

active

045730253

ABSTRACT:
An oscillator having the ability to oscillate at a plurality of discrete frequencies in response to an applied digital signal is disclosed. A crystal-controlled, resonant circuit utilizing passive components as frequency determining elements and a PIN diode switching scheme allows the oscillator to demonstrate a tendency for each of the plurality of discrete frequencies to drift equally in response to temperature changes. A two-transistor, emitter coupled amplifying section uses a current mirror for biasing and provides an impedance matching network.

REFERENCES:
patent: 3538450 (1970-11-01), Andrea et al.
patent: 3996530 (1976-12-01), Feistel et al.

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