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.
Patent No.:
Date of Patent:
Aug. 09, 2016
Filed:
Jan. 27, 2015
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Patrick Satarzadeh, Campbell, CA (US);
Venkatesh Srinivasan, Dallas, TX (US);
Charles Sestok, Dallas, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/10 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03M 3/464 (2013.01); H03M 3/38 (2013.01); H03M 3/382 (2013.01); H03M 3/458 (2013.01);
Abstract
Traditionally, pipelined continuous-time (CT) sigma-delta modulators (SDM) have been difficult to build due at least in part to the difficulties in calibrating the pipeline. Here, however, a pipelined CT SDM is provided that has an architecture that is conducing to being calibrated. Namely, the system includes a digital filter and other features that can be adjusted to account for input imbalance errors and well as quantization leakage noise.