Low-power baud rate generator including two oscillators

Details Low-power baud rate generator including two oscillators Low-power baud rate generator including two oscillators

1994-07-20

1995-03-14

Grimm, Siegfried H.

Oscillators

Plural oscillators

331 48, 327114, 327115, H03L 700

Patent

active

053980077

ABSTRACT:
A baud rate generator has a first oscillator that generates a first clock signal, and a second oscillator that generates a second clock signal with higher frequency but lower frequency accuracy. The first oscillator employs an external resonator but the second does not. The baud rate generator uses the first clock signal to measure the frequency of the second clock signal, then determines a division ratio by which to divide the frequency of the second clock signal, then divides the second clock signal by this division ratio to generate a crock signal for use in serial communication.

REFERENCES:
patent: 4305041 (1981-12-01), Frerking

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