Transmitter with self-triggered transition equalizer
First Claim
1. A transmitting device, comprising:
- an output node;
at least one driver circuit to drive an output data signal onto the output node, the output data signal having a plurality of data transitions; and
transition equalization circuitry having an output coupled to the output node, the transition equalization circuitry beginning to drive the output node at a data transition from the plurality of data transitions and ending driving of the output node a pre-determined delay after beginning to drive the output node,wherein a drive strength of the transition equalizer circuitry varies depending on a magnitude of change of digital data in the plurality of data transitions.
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Accused Products
Abstract
A transmitting device includes an output node, at least one driver circuit and transition equalization circuitry. The driver circuit drives an output data signal including a data transition onto the output node. The output of the transition equalization circuitry is coupled to the output node. The transition equalization circuitry begins to drive the output node at the data transition and ends driving of the output node a pre-determined delay after beginning to drive the output node. The transition equalization circuitry drives the output node by injecting current onto the output node if the data transition is a positive transition, and sinking current from the output node if the data transition is a negative transition.
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Citations
20 Claims
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1. A transmitting device, comprising:
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an output node; at least one driver circuit to drive an output data signal onto the output node, the output data signal having a plurality of data transitions; and transition equalization circuitry having an output coupled to the output node, the transition equalization circuitry beginning to drive the output node at a data transition from the plurality of data transitions and ending driving of the output node a pre-determined delay after beginning to drive the output node, wherein a drive strength of the transition equalizer circuitry varies depending on a magnitude of change of digital data in the plurality of data transitions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of operation in a transmitting device, comprising:
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driving, with a line driver, an output data signal onto an output node, the output data signal having a plurality of data transitions; and beginning to drive, with a transition equalizer circuit, the output node at a data transition from the plurality of data transitions; and ending, by the transition equalizer circuit, driving of the output node a pre-determined delay after beginning to drive the output node, wherein a drive strength of the transition equalizer circuit varies depending on a magnitude of change of digital data in the plurality of data transitions. - View Dependent Claims (16, 17, 18, 19)
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20. A non-transitory computer readable storage medium storing a representation of a transmitting device, the transmitting device comprising:
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at least one driver circuit to drive an output data signal onto an output node, the output data signal having a plurality of data transitions; and transition equalization circuitry having an output coupled to the output node, the transition equalization circuitry beginning to drive the output node at a data transition from the plurality of data transitions and ending the driving a pre-determined delay after beginning to drive the output node, wherein a drive strength of the transition equalizer circuitry varies depending on a magnitude of change of digital data in the plurality of data transitions.
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Specification