Oscillator with impedance buffer for increased pullability

Details Oscillator with impedance buffer for increased pullability Oscillator with impedance buffer for increased pullability

1995-07-17

1996-12-31

Mis, David

Oscillators

Solid state active element oscillator

Transistors

331 36C, 331158, 331177V, 332136, 375303, H03B 536, H03C 320

Patent

active

055898041

ABSTRACT:
A pullable overtone crystal oscillator (201) includes an impedance buffer (217) for buffering an input impedance (109) to an amplifier stage (203). This structure enables construction of an overtone oscillator with increased pullability because a drive level of a crystal (221) can be set independent of the input impedance (109) of the amplifier stage (203).

REFERENCES:
patent: 4139826 (1979-02-01), Pradal
patent: 4560955 (1985-12-01), Sauer
patent: 4587497 (1986-05-01), Keller et al.
patent: 4591807 (1986-05-01), Davis
patent: 4859969 (1989-08-01), Malinowski et al.
patent: 4999589 (1991-03-01), DaSilva

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