Invention Grant
- Patent Title: Digital filtering for analog gain/phase errors
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Application No.: US16005673Application Date: 2018-06-11
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Publication No.: US10581406B2Publication Date: 2020-03-03
- Inventor: Jawaharlal Tangudu , Karthik Khanna S , Chandrasekhar Sriram , Rajendrakumar Joish , Viswanathan Nagarajan
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; Charles A. Brill; Frank D. Cimino
- Priority: IN201741020240 20170609
- Main IPC: H03H11/12
- IPC: H03H11/12 ; H01P1/22 ; H03H11/06 ; H03H11/04 ; H03M1/12

Abstract:
A circuit for digital filtering an analog signal converted to digital, including an analog circuit to generate an analog signal, the analog signal including phase and/or gain errors. An analog-to-digital converter (ADC) to convert the analog signal to a digital signal output to a digital signal path. A frequency-dependent corrector filter included in the digital signal path, and configured as a parameterized filter, the parameterized filter configurable based on the DSA control signal with at least one complex filter parameter for each DSA attenuation step, to correct frequency-dependent errors in phase and/or gain.
Public/Granted literature
- US20190013795A1 DIGITAL FILTERING FOR ANALOG GAIN/PHASE ERRORS Public/Granted day:2019-01-10
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