公开(公告)号：US12184272B2

公开(公告)日：2024-12-31

申请号：US18308395

申请日：2023-04-27

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John P. Lesso ,  Douglas J. W. Macfarlane

IPC: H03K17/687 ,  H03K19/00 ,  H03K19/0185

Abstract: A switching transducer driver operable in: a first mode in which first and second output stage switches are controlled to generate a two-level output signal, wherein an impedance of the first output stage switch is substantially the same as an impedance of the second output stage switch; and a second mode in which the first and second output stage switches and a third switch are controlled to generate a three-level output signal, wherein an impedance of the third switch is substantially greater than the impedance of the first output stage switch and the second output stage switch.