Invention Grant
- Patent Title: PAM4 transceivers for high-speed communication
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Application No.: US17171801Application Date: 2021-02-09
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Publication No.: US11431416B2Publication Date: 2022-08-30
- Inventor: Karthik Gopalakrishnan , Jamal Riani , Arun Tiruvur
- Applicant: MARVELL ASIA PTE, LTD.
- Applicant Address: SG Singapore
- Assignee: MARVELL ASIA PTE, LTD.
- Current Assignee: MARVELL ASIA PTE, LTD.
- Current Assignee Address: SG Singapore
- Main IPC: H04B10/00
- IPC: H04B10/00 ; H04L7/04 ; H03K7/02 ; H04B10/40 ; H03K5/00 ; H03K19/0185 ; H03L7/093 ; H03L7/099 ; H03L7/197 ; H03L7/23 ; H04L7/00 ; H04L25/00 ; H04L25/49 ; H04B10/54 ; H04L7/033

Abstract:
A communication device includes an AFE configured to track and hold a first driving signal to produce a plurality of sample signals, a shift and hold module configured to store the plurality of sample signals, and an ADC configured to respectively convert the plurality of sample signals to a plurality of digitized sample signals, the ADC including a plurality of ADC slices. A DSP is configured to calibrate the AFE based on the plurality of ADC slices corresponding to the plurality of digitized sample signals and generate an output data stream comprising the plurality of digitized samples. A skew management module is configured to detect a skew of the plurality of digitized sample signals in the output data stream generated by the DSP module, generate a programmable skew offset based on the detected skew, and correct the skew in the output data stream based on the programmable skew offset.
Public/Granted literature
- US20210167858A1 PAM4 TRANSCEIVERS FOR HIGH-SPEED COMMUNICATION Public/Granted day:2021-06-03
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