Oscillator circuit with laser-trimmable load impedance

Details Oscillator circuit with laser-trimmable load impedance Oscillator circuit with laser-trimmable load impedance

2007-01-30

2007-01-30

Callahan, Timothy P. (Department: 2816)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S03600C

Reexamination Certificate

active

10741495

ABSTRACT:
An oscillator circuit for generating signals with a predetermined oscillator frequency is provided. The oscillator circuit has at least one resonator and at least one load impedance connected to the resonator. The oscillator circuit may be fully automatically trimmed and economically produced and, moreover, is of an improved quality wherein the load impedance comprises at least one structure which may be machined by means of high-energy radiation to trim the resonant characteristics of the oscillator circuit.

REFERENCES:
patent: 4095199 (1978-06-01), Behn et al.
patent: 4749963 (1988-06-01), Makimoto et al.
patent: 5264983 (1993-11-01), Petrinec
patent: 6201458 (2001-03-01), Matsuo et al.
patent: 6604266 (2003-08-01), Tajima et al.
Johanson Technology “LASERtrim Tuning Application Notes” (1998) pp. 10-13.

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