The complete digital processing (physical medium dependent) of the discrete
multitone modulation scheme and transmission convergence layer has been in
tegrated into a single device, processed in 0.35-mu m standard CMOS process
. Power and area are kept well within limits, making this device a cost-eff
ective solution for asymmetric digital subscriber line and network terminat
ing systems. New design methods were used to meet the severe time-to-market
constraint of this high-complexity device.