Crystal oscillator having switchably disabled harmonic-tuned out

Details Crystal oscillator having switchably disabled harmonic-tuned out Crystal oscillator having switchably disabled harmonic-tuned out

1978-11-28

1980-04-22

Grimm, Siegfried H.

Oscillators

Combined with particular output coupling network

Space discharge or unilaterally conductive device in output...

331 77, 331116R, 331158, 331173, H03B 536

Patent

active

041997344

ABSTRACT:
An oscillator is disclosed having a one-stage amplifier and a quartz crystal resonator which operates in series resonance with a L-C oscillating circuit. An oscillating circuit which is tuned to a harmonic of the oscillator frequency is also provided which is connected via a filter device to an output of the amplifier stage. A switching device is provided which short circuits the oscillating circuit tuned to a harmonic as and when required.

REFERENCES:
patent: 2543456 (1951-02-01), Grisdale
patent: 3382447 (1968-05-01), Racy
Tietze et al., Halbleiter-Schaltungstechnik, Springer, Berlin, 1971, pp. 361-371.

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