公开(公告)号：US20180219559A1

公开(公告)日：2018-08-02

申请号：US15702962

申请日：2017-09-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae-hoon LEE ,  Jong-woo LEE ,  Chilun LO ,  Seung-hyun OH ,  Jong-mi LEE

IPC: H03M3/00

CPC classification number: H03M3/464 ,  H03M3/426 ,  H03M3/434 ,  H03M3/436 ,  H03M3/498

Abstract: A variable feedback gain delta modulator includes group of capacitors commonly connected to a first terminal and are respectively classified into a first capacitor group and a second capacitor group; a comparator for sequentially generating n-bit digital output signals based on a voltage of the first terminal; and a switch group including switches respectively connected to the capacitors, wherein the switches are respectively classified into a first switch group and a second switch group respectively connected to the first capacitor group and the second capacitor group, and the first switch group and the second switch group respectively operate according to a first control signal and a second control signal that are determined based on the n-bit digital output signals and the variable feedback gain.