公开(公告)号：US20180316340A1

公开(公告)日：2018-11-01

申请号：US15925377

申请日：2018-03-19

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Anuradha PARSI ,  Michael A. KOST ,  Aaron BRENNAN

IPC: H03K17/041 ,  H03K17/10 ,  H03K17/30

CPC classification number: H03K19/018585

Abstract: A circuit may include first circuitry within a lower voltage domain, second circuitry within a higher voltage domain, a pass gate switch coupled between the first circuitry and the second circuitry for selectively coupling the first circuitry to the second circuitry, and control circuitry configured to control and vary a control voltage of the pass gate switch based on a threshold voltage of the pass gate switch.