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:
Apr. 14, 2020
Filed:
May. 15, 2018
Applicant:
Arm Limited, Cambridge, GB;
Inventor:
Alexandru Aurelian Ciubotaru, Coconut Creek, FL (US);
Assignee:
Arm Limited Cambridge, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/36 (2006.01); G01R 31/28 (2006.01); H03K 5/24 (2006.01); H03K 4/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2884 (2013.01); G01R 31/2824 (2013.01); H03B 5/364 (2013.01); H03K 4/00 (2013.01); H03K 5/24 (2013.01);
Abstract
A built-in self-test (BIST) methodology and apparatus provide for testing and calibration of an integrated circuit oscillator circuit topology that uses a one-pin (a single-pin) external resonator. The method employs dedicated test circuitry, also referred to herein as BIST apparatus, for the pass/fail verification of both the active and passive building blocks of the oscillator. At the same time, the methodology ensures accurate calibration and matching of the capacitors using dedicated digital circuitry and algorithms.