公开(公告)号：US11949382B2

公开(公告)日：2024-04-02

申请号：US17894799

申请日：2022-08-24

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Philip Clarkin ,  Ivan Perry ,  Mark H. Tovell ,  Roberto Napoli ,  David Rhodes

IPC: H03F1/02 ,  H03F3/217 ,  H03M1/12 ,  H04R3/00

CPC classification number: H03F1/0227 ,  H03F3/217 ,  H03M1/12 ,  H04R3/007 ,  H03F2200/03

Abstract: The present disclosure relates to circuitry comprising: amplifier circuitry configured to receive a variable supply voltage, wherein the supply voltage varies according to an output signal of the amplifier circuitry; monitoring circuitry configured to monitor one or more parameters of an output signal of the amplifier circuitry; and processing circuitry configured to receive an indication of the voltage of the variable supply voltage and an indication of the monitored parameters from the monitoring circuitry and to apply a correction to one or more of the monitored parameters to compensate for coupling between the variable supply voltage and the monitoring circuitry.

公开(公告)号：US11476805B2

公开(公告)日：2022-10-18

申请号：US16850248

申请日：2020-04-16

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Philip Clarkin ,  Ivan Perry ,  Mark H. Tovell ,  Roberto Napoli ,  David Rhodes

IPC: H03F1/02 ,  H04R3/00 ,  H03M1/12 ,  H03F3/217

Abstract: The present disclosure relates to circuitry comprising: amplifier circuitry configured to receive a variable supply voltage, wherein the supply voltage varies according to an output signal of the amplifier circuitry; monitoring circuitry configured to monitor one or more parameters of an output signal of the amplifier circuitry; and processing circuitry configured to receive an indication of the voltage of the variable supply voltage and an indication of the monitored parameters from the monitoring circuitry and to apply a correction to one or more of the monitored parameters to compensate for coupling between the variable supply voltage and the monitoring circuitry.