Intersil Introduces Lowest Power, Dual Port, Class G Line Driver

Thu Nov 1, 2012 11:00am EDT

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  MILPITAS, CA, Nov 01 (Marketwire) -- 
Intersil Corporation (NASDAQ: ISIL), a world leader in the design and
manufacture of high-performance analog and mixed signal semiconductors,
today extends its 20-year history of providing leading-edge products to
the central office DSLAM market with the introduction of the ISL1561, 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. Its industry
leading design supports another 10% power savings in emerging +12V single
supply 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.

    Features and Benefits

--  Nominal quiescent current to support full line power for ADSL2+ is
    only 8mA/port; VDSL2+ 8b is 10mA/port; and VDSL2+ 17a is only
--  For the most demanding 8b profile, total quiescent power to deliver
    19.5dBm to the line is reduced from > 900mW/port to Signal peaks
    maintains a signal linearity comparable to much higher power +24V
    class AB solutions


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. For more information please visit: 

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    About Intersil
 Intersil Corporation is a leader in the design and
manufacture of high-performance analog, mixed-signal and power management
semiconductors. The company's products address some of the fastest
growing markets within the industrial and infrastructure, personal
computing and high-end consumer markets. For more information about
Intersil or to find out how to become a member of our winning team, visit
our website and career page at

    Intersil and the Intersil logo are trademarks or registered trademarks of
Intersil Corporation. All other brands, product names and marks are or
may be trademarks or registered trademarks used to identify products or
services of their respective owners.


Media Contact
Kelly Maxwell
Intersil Corporation
(408) 546-3582 

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