Bit-level mode retimer
AssigneeDiodes Incorporated
InventorsYu-Wei Lin, Yi Sheng Lin, Nanyuan Chen
Life of this patent
Estimating the term…
Abstract
Disclosed are some examples of retimer circuitry, systems and methods. In some implementations, clock data recovery circuitry is coupled between a receiver and a transmitter. The clock data recovery circuitry is configured to: extract a data component from an input data signal associated with the receiver, provide the data component to the transmitter, and generate a phase control signal. Phase interpolator circuitry is coupled with the clock data recovery circuitry. The phase interpolator circuitry includes a phase interpolator configured to: receive the phase control signal, generate, based on the phase control signal, an output clock signal, and provide the output clock signal to the transmitter to track data packets of the data component.
Claims25
Retimer circuitry comprising:
- clock data recovery circuitry to be coupled between a receiver and a transmitter, the clock data recovery circuitry configured to:
- extract a data component from an input data signal associated with the receiver,
- provide the data component to the transmitter, and
- generate a phase control signal comprising control codes for controlling a phase interpolator to change a phase of a base clock signal;
- and
- phase interpolator circuitry coupled with the clock data recovery circuitry, the phase interpolator circuitry comprising the phase interpolator configured to:
- receive the phase control signal and the base clock signal,
- generate, based on the phase control signal and on the base clock signal, an output clock signal, and
- provide the output clock signal to the transmitter to track data packets of the data component.
A retimer system comprising:
- a first device;
- a second device;
- and
- a data interface connecting the first and second devices, the data interface comprising a repeater, the repeater comprising:
- clock data recovery circuitry coupled between a receiver in communication with the first device and a transmitter in communication with the second device, the clock data recovery circuitry configured to:
- extract a data component from an input data signal associated with the receiver,
- provide the data component to the transmitter, and
- generate a phase control signal comprising control codes for controlling a phase interpolator to change a phase of a base clock signal;
- and
- phase interpolator circuitry coupled with the clock data recovery circuitry, the phase interpolator circuitry comprising the phase interpolator configured to:
- receive the phase control signal and the base clock signal,
- generate, based on the phase control signal and on the base clock signal, an output clock signal, and
- provide the output clock signal to the transmitter to track data packets of the data component.
A retiming method comprising:
- extracting a data component from an input data signal associated with a receiver;
- providing the data component to a transmitter;
- generating a phase control signal comprising control codes for controlling a phase interpolator of phase interpolator circuitry to change a phase of a base clock signal;
- generating, by the phase interpolator based on the phase control signal and on the base clock signal, an output clock signal;
- and
- providing the output clock signal to the transmitter to track data packets of the data component.
Dependencies are inferred from the claim text.