Temperature controlled crystal oscillator arrangement

Details Temperature controlled crystal oscillator arrangement Temperature controlled crystal oscillator arrangement

1983-05-18

1985-12-24

LaRoche, Eugene R.

Oscillators

Frequency stabilization

Temperature or current responsive means in circuit

331 66, 331116R, H03L 102

Patent

active

045609594

ABSTRACT:
A temperature compensated crystal oscillator in which the base emitter voltage of transistors in an integrated circuit is used to provide substantially linearly temperature sensitive outputs which are employed to generate a series of polynomial functions of Chebyshev-like form which are summed and used to control a varicap diode in the oscillator feedback path.

REFERENCES:
patent: 3454903 (1969-07-01), Page
patent: 3821665 (1974-06-01), Irwin et al.
patent: 4051446 (1977-09-01), Owaki
patent: 4107629 (1978-08-01), Stone, Jr.
Johnson, D. E., "Introduction to Filter Theory" [Book] .COPYRGT.1976, Publisher: Prentice-Hall, pp. 48-51.
Cherry Semiconductor, Genesis.TM. "Linear Semi-Custom Programs".
Exar Integrated Systems Inc., "Linear and Digital Semi-Custom IC Design Programs", Nov. 1980.

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