Sigma-delta converter arrangement

Details Sigma-delta converter arrangement Sigma-delta converter arrangement

2005-05-24

2005-05-24

Tokar, Michael (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S155000

Reexamination Certificate

active

06897796

ABSTRACT:
The invention discloses a sigma-delta converter arrangement with a forward path including an amplifier and a quantizer with a clock input, and a feedback path with a D/A converter. The amplifier is coupled to an integrator which is in the form of a resonator with a tunable frequency and is actuated by a frequency synthesizer that also prescribes the clock rate of the quantizer. The synchronization between the quantizer and resonator results in highly accurate matching given inexpensive integratabiliy, which means that the sigma-delta converter is suitable for use in mobile radios, for example.

REFERENCES:
patent: 5608400 (1997-03-01), Pellon
patent: 5729230 (1998-03-01), Jensen et al.
patent: 6404367 (2002-06-01), Van der Zwan et al.
patent: 6768435 (2004-07-01), Xu
patent: 6822592 (2004-11-01), Gandolfi et al.
patent: 0 533 981 (1993-03-01), None
patent: 2 378 831 (2003-02-01), None
“Continuous Time Sigma-Delta Modulators with Transmission Line Resonators and Improved Jitter and Excess Loop Delay Performance”, L. Hernandez and S. Paton, Universidad Carlos III, May, 2003, 5 pgs.
“A 950-MHz IF Second-Order Integrated LC Bandpass Delta-Sigma Modulator”, Weinan Gao and Martin Snelgrove, IEEE Journal of Solid-State Circuits, vol. 33, No. 5, May 1998, pp. 723-732.

Affiliated with

Also associated with

Rating

Sigma-delta converter arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sigma-delta converter arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sigma-delta converter arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3420797