Method and apparatus for start-up of analog-to-digital...

Details Method and apparatus for start-up of analog-to-digital... Method and apparatus for start-up of analog-to-digital...

2005-11-29

2005-11-29

Mai, Lam T. (Department: 2819)

Coded data generation or conversion

Converter calibration or testing

C341S155000, C341S118000

Reexamination Certificate

active

06970120

ABSTRACT:
An analog-to-digital (ADC) converter circuit that converts an analog input signal into a digital output circuit includes a calibration coefficient computation circuit for computing calibration coefficients of a calibration filter. The calibration coefficient computation circuit includes a switching device adapted to switch the analog input signal delivered to the ADC circuit between on and off states, and includes a pseudo-random signal generator adapted to input a pseudo-random signal to the ADC circuit. During a start-up phase of the ADC circuit, the ADC circuit, the switching device turns off the analog input signal to the ADC circuit, the pseudo-random signal generator inputs a pseudo-random signal into the ADC circuit, and the calibration coefficient computation circuit computes the calibration coefficients of the calibration filter. This ADC circuit configuration reduces startup time for the calibration filter to only a few clock cycles.

REFERENCES:
patent: 5471209 (1995-11-01), Sutterlin et al.
patent: 6348885 (2002-02-01), Munoz et al.
patent: 6417794 (2002-07-01), Munoz et al.
patent: 6486806 (2002-11-01), Munoz et al.
patent: 6839650 (2005-01-01), Sutton et al.

Affiliated with

Also associated with

Rating

Method and apparatus for start-up of analog-to-digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for start-up of analog-to-digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for start-up of analog-to-digital... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3518270