Crystal oscillator with eprom-controlled frequency trim

Details Crystal oscillator with eprom-controlled frequency trim Crystal oscillator with eprom-controlled frequency trim

1997-12-22

2000-08-15

Mis, David

Oscillators

Electromechanical resonator

Crystal

331116FE, 331179, H03B 100, H03B 530, H03B 536

Patent

active

061042579

ABSTRACT:
An apparatus comprising a storage circuit, a load circuit and an oscillator circuit. The storage circuit may be configured to store a number of configuration bits configured to provide one or more control signals. The load circuit may be configured to provide a variable magnitude load in response to the one or more control signals. The oscillator circuit may be configured to provide an output signal, where the output signal has (i) a frequency determined in response to the magnitude of the load circuit and (ii) a magnitude generated in response to a current generated in response to an output of a clamp circuit.

REFERENCES:
patent: 5036294 (1991-07-01), McCaslin
patent: 5084685 (1992-01-01), Moller et al.
patent: 5117206 (1992-05-01), Imamura
patent: 5182528 (1993-01-01), Zuta

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