The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 10, 2026

Filed:

May. 03, 2024
Applicant:

Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;

Inventors:

John L. Melanson, Austin, TX (US);

Lingli Zhang, Austin, TX (US);

Paul M. Astrachan, Austin, TX (US);

James Kelton, Austin, TX (US);

Assignee:

Cirrus Logic Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/82 (2006.01); H03M 1/18 (2006.01); H03M 1/06 (2006.01); H03M 1/10 (2006.01);
U.S. Cl.
CPC ...
H03M 1/822 (2013.01); H03M 1/183 (2013.01); H03M 1/06 (2013.01); H03M 1/1023 (2013.01);
Abstract

A digital-to-analog converter (DAC) may include an integrator, an input network, and control circuitry. The input network may include a plurality of parallel taps, each having a signal delay such that at least two of the signal delays of the members of the plurality of parallel taps are different, and wherein each member is coupled between an input of the digital-to-analog converter and an input of the integrator. The control circuitry may be configured to selectively enable and disable particular members of the plurality of parallel taps in order to program an effective input resistance of the input network to control an analog gain of the DAC, such that the control circuitry enables, substantially contemporaneously, an even number of members at a time in order to increase the analog gain, with half of such enabled members in a first group and half of such enabled members in a second group.


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