公开(公告)号：US10778239B2

公开(公告)日：2020-09-15

申请号：US16377460

申请日：2019-04-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ilhoon Jang ,  Seung-Tak Ryu ,  Hyungjong Ko ,  Miyoung Kim ,  Seungyeob Baek ,  Min-Jae Seo ,  Jaekeun Lee ,  Michael Choi

IPC: H03M1/08 ,  H03M3/00 ,  H03M1/46

Abstract: An electronic circuit includes an analog to digital converter (ADC) and a noise coupling filter. The ADC generates a digital output signal based on a first analog signal and a second analog signal. The noise coupling filter generates the second analog signal to be fed back for an input to the ADC, based on a first quantization error signal associated with converting the first analog signal to the digital output signal. The noise coupling filter performs noise shaping on a digital error signal derived from the quantization error signal and generates the second analog signal from a result of the noise shaping, using a clock in the digital domain.