TY - GEN
T1 - I/O staggering for low-power jitter reduction
AU - Sham, Kin Joe
AU - Harjani, Ramesh
PY - 2008/12/1
Y1 - 2008/12/1
N2 - In this paper, we have developed simplified analytical models for far-end crosstalk that points us in a direction to an ultra-low power technique for reducing crosstalk-induced jitter in existing high-speed memory I/O interfaces. This new architecture design introduces variable delays in alternating lines at the transmitter to mitigate crosstalk-induced jitter. The power-efficient technique decreases jitter at the expense of lowering the voltage margin. The architecture has been verified via simulations and direct measurements. Simulation results at 12Gb/s show that staggered I/Os can successfully reduce jitter by 66.7% and widen the eye by 15.0% while only degrading the voltage margin by 19.5%. Measurement results obtained at 600 Mb/s confirm the presented theoretical framework and show the removal of CIJ at the expense of decreasing the voltage margin from 373mV to 215mV.
AB - In this paper, we have developed simplified analytical models for far-end crosstalk that points us in a direction to an ultra-low power technique for reducing crosstalk-induced jitter in existing high-speed memory I/O interfaces. This new architecture design introduces variable delays in alternating lines at the transmitter to mitigate crosstalk-induced jitter. The power-efficient technique decreases jitter at the expense of lowering the voltage margin. The architecture has been verified via simulations and direct measurements. Simulation results at 12Gb/s show that staggered I/Os can successfully reduce jitter by 66.7% and widen the eye by 15.0% while only degrading the voltage margin by 19.5%. Measurement results obtained at 600 Mb/s confirm the presented theoretical framework and show the removal of CIJ at the expense of decreasing the voltage margin from 373mV to 215mV.
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U2 - 10.1109/EUMC.2008.4751682
DO - 10.1109/EUMC.2008.4751682
M3 - Conference contribution
AN - SCOPUS:62349105046
SN - 9782874870064
T3 - Proceedings of the 38th European Microwave Conference, EuMC 2008
SP - 1226
EP - 1229
BT - Proceedings of the 38th European Microwave Conference, EuMC 2008
T2 - 38th European Microwave Conference, EuMC 2008
Y2 - 27 October 2008 through 31 October 2008
ER -