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© beisea dreamstime.com Components | November 06, 2012

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

Intersil introduced the ISL1561 to the market, claiming that it is the 'most power-efficient 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.
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February 22 2019 2:26 pm V12.2.6-2