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:
May. 29, 2018
Filed:
Jul. 18, 2017
Mediatek Inc., Hsin-Chu, TW;
Pao-Cheng Chiu, New Taipei, TW;
Hung-Yi Hsieh, Hsinchu County, TW;
MEDIATEK INC., Hsin-Chu, TW;
Abstract
A delta-sigma modulator includes a receiving circuit, a loop filter, a quantizer, a dynamic element matching circuit and a digital to analog converter. The receiving circuit is arranged for receiving a feedback signal and an input signal to generate a summation signal. The loop filter is arranged for receiving the summation signal to generate a filtered summation signal. The quantizer is arranged for generating a digital output signal according to the filtered summation signal. The dynamic element matching circuit is arranged for receiving the digital output signal to generate a shaped digital output signal for shaping element mismatch. The digital to analog converter is arranged for performing a digital to analog converting operation upon a signal derived from the shaped digital output signal to generate the feedback signal to the receiving circuit, wherein clock signals used by the quantizer and the dynamic element matching circuit have different frequencies.