公开(公告)号：US20210175852A1

公开(公告)日：2021-06-10

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 ,  H03F3/217 ,  H03M1/12 ,  H04R3/00

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：US20220407461A1

公开(公告)日：2022-12-22

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 ,  H04R3/00 ,  H03M1/12

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.