Dell Products Inc.

V Mallikarjun Goud

Bhyrav M Mutnury

Vijendera Kumar

A receiver includes an ODT network and a signal eye sampler. The ODT network terminates a data communication interface at a selectable impedance including a nominal impedance, at least one higher impedance, and at least one lower impedance. The signal eye sampler determines an eye margin for data received on the data communication interface. The receiver selects the nominal impedance, determines a nominal eye margin associated with the nominal impedance, selects a delta impedance from one of the higher impedance and the lower impedance, determines a delta eye margin associated with the delta impedance, determines whether the delta eye margin is greater than the nominal eye margin, and sets a run time impedance value for the data communication interface to the delta impedance when the delta eye margin is greater than the nominal eye margin.

On-die termination optimization

A method for manufacturing a surface mount technology (SMT) pad structure includes attaching an adjacent pair of differential contact strips to a nonconductive surface of respective landing pads of a surface mount technology (SMT) pad structure of a circuit board substrate, the pair of differential contact strips having converging narrowing at a respective distal end and each having a proximal signal trace for conducting a high-speed communication signal to another functional component attached to a circuit board substrate. The method includes attaching a return current strip that is longitudinally aligned adjacent to the pair of differential contact strips on a first lateral side and connected to a ground plane of the circuit board substrate, the converging narrowing of the adjacent differential contact strip increasing separation from a distal end of the return current strip, the separation improving signal integrity by reducing fringe effects, increasing impedance, and quenching resonance.

Method for manufacturing a surface mount technology (SMT) pad structure for next generation speeds

An Information handling system (IHS) includes a circuit board assembly with surface mount technology (SMT) pad structure. Landing pad(s) attached to circuit board substrate have a mounting area that receive an SMT connector pin onto adjacent pair of differential contact strips plated to nonconductive surface and extending longitudinally in parallel alignment. A return current strip is longitudinally aligned, adjacent to the differential contact strips on a first lateral side. The return current strip is connected to a ground plane of the circuit board substrate. Converging narrowing of the adjacent differential contact strip increases separation from a distal end of the return current strip. The separation improves signal integrity by reducing fringe effects, increasing impedance, and quenching resonance. A surface mount device (SMD) has one or more connector pins that are attached to the one or more landing pads to conduct the high-speed communication signal.

Surface mount technology (SMT) pad design with differential contact strips having converging narrowing distal ends that facilitate high speed communication

A printed circuit board includes vias of first and second differential pairs, and vias of third and fourth differential pairs. The vias of the first and second differential pairs are arranged in a first via pattern based on a first crosstalk signature of a first connector to be coupled to the vias of the first and second differential pairs. The vias of the third and fourth differential pairs are arranged in a second via pattern based on a second crosstalk signature of a second connector to be coupled to the vias of the third and fourth differential pairs.

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Secunderabad, India

V Mallikarjun Goud