Semiconductor integrated circuit with clock generator

Details Semiconductor integrated circuit with clock generator Semiconductor integrated circuit with clock generator

2006-12-26

2006-12-26

Chang, Joseph (Department: 2817)

Oscillators

Automatic frequency stabilization using a phase or frequency...

Tuning compensation

C331S044000, C331S017000

Reexamination Certificate

active

07154343

ABSTRACT:
A semiconductor integrated circuit is provided with an external interface circuit, which includes a clock generation circuit for generating a synchronous clock signal to establish synchronization between data input and output through input and output of a data string sectioned at fixed intervals. The clock generation circuit includes a self-excited oscillator circuit serving as an oscillation source for the synchronous clock signal, and a control circuit for trimming the oscillation frequency of the self-excited oscillator circuit. The control circuit detects the sections made at the fixed intervals to the data string, measures the section interval based on an oscillation output of the self-excited oscillator circuit, and controls the oscillation frequency of the self-excited oscillator circuit to match the measurement value to a target value. With such a structure, any required frequency can be oscillated in a self-excited manner using a data string sectioned at fixed intervals using SOF packets or others instead of an oscillator.

REFERENCES:
patent: 6154095 (2000-11-01), Shigemori et al.
patent: 2002/0062457 (2002-05-01), Kamihara
patent: 2004/0222856 (2004-11-01), Hein et al.
patent: 2001-230837 (2001-08-01), None
patent: 2002-141911 (2002-05-01), None

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit with clock generator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit with clock generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit with clock generator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3695549