Invention Grant
- Patent Title: Calibration of anti-aliasing filter mismatch
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Application No.: US17895897Application Date: 2022-08-25
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Publication No.: US12113551B2Publication Date: 2024-10-08
- Inventor: Arashk Norouzpourshirazi , John L. Melanson , Axel Thomsen
- Applicant: Cirrus Logic International Semiconductor Ltd.
- Applicant Address: GB Edinburgh
- Assignee: Cirrus Logic Inc.
- Current Assignee: Cirrus Logic Inc.
- Current Assignee Address: US TX Austin
- Agency: Jackson Walker L.L.P.
- Main IPC: H03M3/00
- IPC: H03M3/00 ; H03F3/217

Abstract:
In accordance with embodiments of the present disclosure, a method may include, in a system comprising a differential filter comprising a plurality of impedance elements, applying a common-mode signal to the differential filter, measuring an output signal of the differential filter in response to the common-mode signal to determine an error due to impedance mismatch of the impedance elements, and tuning one or more of the plurality of impedance elements to minimize the error.
Public/Granted literature
- US20240072823A1 CALIBRATION OF ANTI-ALIASING FILTER MISMATCH Public/Granted day:2024-02-29
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