公开(公告)号：US20180367158A1

公开(公告)日：2018-12-20

申请号：US15862794

申请日：2018-01-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-Hun KIM ,  Yunseob SONG ,  Jonghwa WON ,  Wangseup YEUM

IPC: H03M1/18 ,  H03K5/1532 ,  H03K5/003 ,  G01R19/04 ,  H03G3/30 ,  G01R35/00 ,  H03G7/08

CPC classification number: H03M1/185 ,  G01R19/04 ,  G01R35/005 ,  H03G3/3078 ,  H03G7/08 ,  H03K5/003 ,  H03K5/1532

Abstract: An electronic circuit includes a peak detector, a gain controller, and a compressor. The peak detector detects a peak level from a digital input. The gain controller outputs a digital gain with regard to increasing the peak level to a target level, The compressor provides the gain controller with a compressed gain which is to be output as the digital gain, based on the detected peak level. In a compression interval where the peak level is greater than a threshold level, the output digital gain increases as the peak level decreases. The compressor generates the compressed gain such that a ratio of an increment of the output digital gain to a decrement of the peak level in the compression interval is less than a reference ratio.