Transmitter for transmitting multi-bit data
AssigneesSK hynix Inc., Seoul National University R&Db Foundation
InventorsChangho HYUN, Suhwan KIM
Life of this patent
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Abstract
A transmitter includes a driving circuitry configured to drive a channel coupled to an output node by controlling an output impedance of a pull-up path, an output impedance of a pull-down path, or both, according to one or more multi-bit data signals, a pull-up control signal, and a pull-down control signal; a driving control circuit configured to generate the pull-up control signal and the pull-down control signal according to one or more calibration signals and the multi-bit data signals or according to the calibration signals and one or more duplicate multi-bit data signals, the duplicate multi-bit data signals duplicating the multi-bit data signals; and a look-up table storing values of the calibration signals.
Claims20
A transmitter comprising:
- a driving circuitry configured to drive a channel coupled to an output node by controlling an output impedance of a pull-up path, an output impedance of a pull-down path, or both, according to one or more multi-bit data signals, a pull-up control signal, and a pull-down control signal;
- a driving control circuit configured to generate the pull-up control signal and the pull-down control signal according to one or more calibration signals and the multi-bit data signals or according to the calibration signals and one or more duplicate multi-bit data signals, the duplicate multi-bit data signals duplicating the multi-bit data signals;
- and
- a look-up table storing values of the calibration signals.
A transmitter comprising:
- a driving circuitry configured to drive a channel coupled to an output node by controlling an output impedance of a pull-up path, or an output impedance of a pull-down path, or both, according to one or more multi-bit data signals, a pull-up control signal, and a pull-down control signal;
- a driving control circuit configured to generate the pull-up control signal and the pull-down control signal according to one or more calibration signals and one or more duplicate multi-bit data signals, the duplicate multi-bit data signals duplicating the multi-bit data signals;
- a data conversion circuit configured to generate parallel data from input data;
- and
- a serialization circuitry configured to generate the multi-bit data signals and the duplicate multi-bit data signals by serializing the parallel data.
Dependencies are inferred from the claim text.