Line driver with pulse shaper

摘要: An integrated circuit driver for providing data to a communications channel comprises first and second output buffers coupled conductors (e.g. bondpads) respectively. Each buffer multiplicity of pull-up transistors pull-down the associated conductor through resistors resistors, A delay circuits input node supply delayed signals control terminals transistors. Control circuitry is included selectively activating circuits. In typical case, multiplexers each having an that corresponding circuit. Advantages technique include constant impedance waveshaping reduction harmonics. application in Ethernet twisted-pair wire communication system, wherein external components (resistors center-tapped transformer) may be eliminated.