Samsung patents circuit to sync high-speed data receivers
Samsung has received a patent for a specific circuit design used in high-speed data receivers. The system uses a combination of logic dividers and phase interpolators to precisely align clock signals with incoming data. This synchronization is managed by a detector circuit that adjusts the timing within a feedback loop.
In the filing’s own words
Embodiments herein disclose a phase control circuit for a high-speed ADC clock receiver in a PAM4 receiver comprises of, a plurality of Current-Mode Logic (CML) IQ dividers, a plurality of phase interpolators, and a detector circuit, wherein the detector circuit determines phase relation between plurality of clock signals from the plurality of CML IQ dividers and control inputs of the plurality of phase interpolators in a clock data recovery loop based on the determined phase relation.
What exactly they claim (claim 1)
1. A circuit configured to manage phase for a high-speed analog-to-digital converter (ADC) clock receiver in a pulse-amplitude modulation (PAM) receiver, comprising: one or more Current-Mode Logic (CML) in-phase/quadrature (IQ) dividers; a plurality of phase interpolators; one or more CML to Complementary Metal-Oxide-Semiconductor (CMOS) converters connected to an output of at least one of the plurality of phase interpolator; and a detector circuit configured to determine a phase relation between a plurality of clock signals received from the one or more CML IQ dividers, and control inputs of the plurality of phase interpolators in a Clock and Data Recovery (CDR) loop based on the determined phase relation.
Facts
- Company
- Samsung (Samsung Electronics Co., Ltd.)
- Official title
- Phase management circuit for high-speed ADC receivers and methods thereof
- Patent number
- US12756603B2
- Application number
- 18953479
- Filed
- Nov 20, 2024
- Granted
- Oct 6, 2026
- Inventors
- 4
- Claims
- 12
Classified under
H04L 25/4921 Electricity & electronicsH03L 7/093 Electricity & electronicsMore from Samsung in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.