SOURCE: Intersil

November 14, 2006 06:00 ET

Intersil's New Multiplexer Enables Switching Between Four Different Video Inputs on Separate Gain-of-Two Amplified Channels

ISL59446 Features Integrated Gain-of-Two Amplifiers, 500MHz Bandwidth and +/-1600V/µs Slew Rate for High-Quality Video Switching

MUNICH, GERMANY -- (MARKET WIRE) -- November 14, 2006 -- ELECTRONICA -- Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today introduced the ISL59446, a triple-channel 4:1 multiplexer with three integrated gain-of-two amplifiers. This device enables simultaneous switching between four unique triple-video input signals or can be placed in a high impedance state that will allow these devices to be used as building blocks in larger switching matrices.

The ISL59446 uses four digital input signals to deliver superior design flexibility and unique functionality. Combinations of signals through the S0 and S1 pins can place the device into four different states that will determine which of the four input sources will be passed through the three output channels. For example, one state can pass the separate R, G and B signals from one source through all three amplified output channels.

The HIZ pin is used to place the device in a high impedance state to allow several of these devices to be used together to create 8:1, 12:1, or 16:1 switching matrices. The ENABLE pin can be used to place the device in a power-down mode that reduces power to just 14mW so that unneeded circuitry can be turned off in power-sensitive applications.

"Intersil's ISL59446 supports four video input signals, each comprised of three channels, making it ideal for next-generation video electronics," said Kathryn Tucker, marketing manager for Intersil's Video products group. "This device provides 500MHz bandwidth to meet the high resolution requirements of monitors and projectors as well as the KVM (keyboard, video and mouse) market."

Driving High-Resolution Video

The ISL59446 provides 500MHz bandwidth into a 150 Ohm load to support high-resolution video while driving a typical video load. A slew rate of +/-1600V/µs enables good bandwidth even at the high signal levels associated with video signals.

This device uses three integrated amplifiers with a fixed gain of two to deliver double-terminated video loads. Double termination provides consistent video signal levels and eliminates the need for an additional external amplification stage which reduces cost and saves board space.

Key Features

--  500MHz bandwidth into 150 Ohms
--  +/-1600V/µs slew rate
--  High impedance outputs
--  Internally set gain-of-two amplifiers
--  High impedance state (HIZ)
--  Power-down mode (ENABLE)
--  +/-5V operation
--  Supply current 11mA/ch
--  Pb-free plus anneal available (RoHS compliant)
Target Applications
--  HDTV/DTV analog inputs
--  Video projectors
--  Computer monitors
--  Set-top boxes
--  Security video
--  Broadcast video equipment
About Intersil's Video Products

From high-performance video amplifiers to differential line equalizers, Intersil's portfolio of video products can address any portion of the analog signal chain. The number and variety of video products on the market continues to grow. With the expansion of HDTV and high-resolution RGB (red, green, blue) signals, the most common point-to-point connection for a video signal is analog. Intersil's video ICs provide many solutions for moving these signals around. Whether it is transmitting RGB down CAT-5 or switching 32 security video feeds, Intersil has a solution. Also, Intersil's ISL5944x family extends the available bandwidth of RGB multiplexers on the market from 500 MHz up to 1GHz -- the first time this barrier has been broken. Intersil continues to deliver best-in-class video solutions for its customers, addressing every piece of the signal chain. To learn more about Intersil's broad video portfolio, visit Intersil's Video ICs page at

Analog Technology on Display at Electronica

Intersil will display its complete portfolio of high-performance analog products that address the industry's fastest-growing markets at Electronica 2006 from November 14-17, 2006 in Hall A4, Booth 207 at the New Trade Fair Centre in Munich, Germany. For more information, visit,1246,132,00.html.

Pricing and Availability

The ISL59446 is available now in a 24-lead QFN package and is priced at $4.50 each in 1,000-unit quantities. More information on the ISL59446 is available at,1477,ISL59446,0.html.

Note to editors: To view a high-resolution downloadable photo of the ISL59446, visit Intersil's photo room at:

About Intersil

Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets such as flat panel displays, cell phones, handheld products and notebook computing. Intersil's product families address both power management and analog signal processing functions. Intersil products include ICs for battery management; hot-swap and hot-plug controllers; linear regulators; supervisory ICs; switching DC/DC regulators; power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high-performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and radiation-hardened applications. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at

Contact Information

  • Media Contact
    Kim Fehrt
    Public Relations Manager
    Intersil Corporation
    (408) 546-3566
    Email Contact