Modulator with loop-delay compensation

Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder

Reexamination Certificate

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Details

C341S118000, C341S120000, C341S155000

Reexamination Certificate

active

08072362

ABSTRACT:
A modulator is constructed with a loop-delay compensation. A delta-sigma modulator generates a quantization code, and a digital compensation filter receives the quantization code and outputs a digital code. The digital compensation filter then feeds the digital code back to the delta-sigma modulator.

REFERENCES:
patent: 5870048 (1999-02-01), Kuo et al.
patent: 6300890 (2001-10-01), Okuda et al.
patent: 6985098 (2006-01-01), Lee
patent: 7405682 (2008-07-01), Ebner et al.
patent: 7423567 (2008-09-01), Melanson
patent: 7453382 (2008-11-01), Wiesbauer et al.
patent: 7583765 (2009-09-01), Beamish
patent: 7696913 (2010-04-01), Melanson
patent: 7852249 (2010-12-01), Oliaei
patent: 2007/0188362 (2007-08-01), Doerrer et al.
patent: 2007/0210948 (2007-09-01), Wang
patent: 2008/0062026 (2008-03-01), Melanson
patent: 2008/0136693 (2008-06-01), Kim et al.
patent: 2008/0165043 (2008-07-01), Wiesbauer et al.
patent: 2008/0272946 (2008-11-01), Melanson
patent: 2011/0032132 (2011-02-01), Lin et al.
S. Yan and E. Sanchez-Sinencio, “A Continuous-Time Sigma-Delta Modulator with 88-dB Dynamic Range and 1.1-MHz Signal Bandwidth,” ISSCC Dig. Tech. Papers, pp. 62-63, Feb. 2003.
P. Fontaine, A. N. Mohieldin and A. Bellaouar, “A Low-Noise Low-Voltage CT ΔΣ Modulator with Digital Compensation of Excess Loop Delay,” ISSCC Dig. Tech. Papers, pp. 498-499, Feb. 2005.
G. Mitteregger et al., “A 14b 20mW 640 MHz CMOS CT ΔΣ ADC with 20MHz Signal Bandwidth and 12b ENOB,” ISSCC Dig. Tech. Papers, pp. 131-140, Feb. 2006.
Y. Chen, “Compensation filter for the excess-loop delay of a delta-sigma modulator,” Sep. 2009.

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