Quartz crystal oscillator with temperature-compensated frequency

Details Quartz crystal oscillator with temperature-compensated frequency Quartz crystal oscillator with temperature-compensated frequency

1989-07-19

1991-04-02

Pascal, Robert J.

Oscillators

Solid state active element oscillator

Transistors

331158, 331176, H03B 504

Patent

active

050049887

ABSTRACT:
A temperature-compensated quartz crystal oscillator has two or more temperature compensating units. The first temperature compensating unit compensates the frequency-temperature characteristics of the oscillator over its rated temperature range. The other temperature compensating units further independently compensate the frequency-temperature characteristics of the oscillator within respective specific temperature regions of the compensated frequency-temperature characteristics to obtain desired frequency-temperature characteristics for the crystal oscillator.

REFERENCES:
patent: 3792377 (1974-02-01), Fujita
patent: 4051446 (1977-09-01), Owaki
patent: 4456892 (1984-06-01), Vandergraaf

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