Invention Grant
- Patent Title: Integrated timing skew calibration with digital down conversion for time-interleaved analog-to-digital converter
-
Application No.: US17364675Application Date: 2021-06-30
-
Publication No.: US11722144B2Publication Date: 2023-08-08
- Inventor: Claire Huinan Guan , Scott R. Powell , Sean Wen Kao , Leo Ghazikhanian
- Applicant: Jariet Technologies, Inc.
- Applicant Address: US CA Redondo Beach
- Assignee: JARIET TECHNOLOGIES, INC.
- Current Assignee: JARIET TECHNOLOGIES, INC.
- Current Assignee Address: US CA Redondo Beach
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: H03M1/12
- IPC: H03M1/12 ; H03M1/10

Abstract:
An interleaved analog-to-digital conversion (ADC) system may have timing errors in a time domain that is corrected using phase compensation in a phase domain. The ADC system may include sub-ADCs, each receiving a clock signal, which is associated with a representation of a timing skew value, reflecting an undesired timing error. A mixer may have sub-mixers, each receiving a sub-ADC output signal and a compensated numerically controlled oscillator (NCO) value. A combiner may combine the sub-mixer output signals. A decimator may decimate the output of the combiner. Each timing skew value is in a time domain. A compensated NCO value is determined using a respective phase skew value. Each phase skew value is an offset value in phase and is not a value in time. Each phase skew value in a phase domain compensates the respective timing skew value in a time domain. Multiple ADC systems and methods are described.
Public/Granted literature
Information query