Intersil markets a 'lowest power, dual port, class G line driver'

Designed for existing and emerging xDSL central office reference designs with significant improvements over Class H solutions, the ISL1561 provides backward compatibility to existing +14V systems. Each of the two ports is internally configured for a fixed 11.6V/V gain using a specific external build out resistor and a cross-coupled feedback, providing active output impedance with reduced losses. A three-pin serial interface allows each port to be separately tuned to the minimum required quiescent current for the intended signal standard. Two external supply voltage boost caps provide a brief peak in the total output stage voltage to supply the peak line voltages using a control signal from the AFE. Pricing and Availability The ISL1561 is available now in compact 24-lead QFN packages, with prices starting at $2.57 each in 1,000-unit quantities.