Digital downconverter with digital oscillator frequency error correction

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United States of America

PATENT NO 10574246
APP PUB NO 20190207612A1
SERIAL NO

15949294

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Abstract

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A digital local oscillator includes a look-up table and oscillator control circuitry. The look-up table contains samples of the digital local oscillator signal. The oscillator control circuitry is configured to select samples from the look-up table based on an accumulated phase value. The oscillator control circuitry is also configured to add a correction value to the accumulated phase value based on a difference of a frequency of the digital local oscillator signal and a desired frequency.

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Patent Owner(s)

Patent OwnerAddress
TEXAS INSTRUMENTS INCORPORATED13588 N CENTRAL EXPRESSWAY MS 3999 DALLAS TX 75243

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dhaniwala, Raunak Jaipur, IN 1 0
Gunturi, Sarma Sundareswara Bengaluru, IN 37 34
Rangachari, Sundarrajan Trichy, IN 30 65
Vs, Aswath Kannur, IN 11 5

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