公开(公告)号：US20190013795A1

公开(公告)日：2019-01-10

申请号：US16005673

申请日：2018-06-11

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jawaharlal Tangudu ,  KARTHIK KHANNA S ,  Chandrasekhar Sriram ,  Rajendrakumar Joish ,  Viswanathan Nagarajan

IPC: H03H11/12 ,  H03H11/06 ,  H01P1/22

CPC classification number: H03H11/1204 ,  H01P1/22 ,  H03H11/06 ,  H03H17/02 ,  H03H2011/0494 ,  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.