News & Events
Intersil’s Revolutionary Video Drivers Enable True Single Supply 3.3V Operation of Video Amps

ISL59833 and ISL59837 With Built-in Charge Pumps Generate Negative Voltages, Eliminating Need for External Negative Rail, Reducing Board Space and Total Cost

MILPITAS, CA, September 25, 2008 – Intersil Corporation (NASDAQ Global Select: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today introduced groundbreaking new 200MHz single supply video drivers, the ISL59833 and ISL59837, each equipped with charge pumps that create negative voltage and remove the need for external negative rails.

The new ISL59833 and ISL59837 video drivers deliver true single supply operation of video amplifiers using a single +3.3V power supply. Charge pumps on board each device creates a negative voltage of -1.6V from the +3.3V power supply, eliminating the need for external negative rails and the components required for a negative power supply.

Both new drivers handle video signals with black level at ground and the sync pulse below ground, enabling significant reductions in board space and total component cost. They are ideal for systems that require output swing below ground but lack a negative power supply, such as single supply consumer applications like projectors and video conference equipment.

The video drivers provide 200MHz -3dB bandwidth and 50MHz 0.1dB bandwidth with a fixed gain of 2 output buffer. Both devices have an enable pin to power down the op amps, reducing the current to 60mA. The ISL59837 also has a power down feature for the charge-pump, further reducing the current to less than 1 mA. DC-accurate output coupling eliminates the need for large output AC coupling capacitors.

Generating the negative voltage internally allows for DC-accurate coupling of video onto a 75 ohms double-terminated line. The buffers have an integrated 6dB of compensation, so there is no need for external gain-setting resistors. An external reference voltage can be applied to the REF pin to shift the analog video level down, which enables designers to adjust DC levels of the signal or remove a DAC offset.

Pricing and Availability
The ISL59833 and ISL59837 are available now in 16-ld QSOPs and are priced at $1.79 in 1,000-unit quantities.

For more information on the ISL59833, please visit http://www.intersil.com/cda/deviceinfo/0,1477,ISL59833,0.html.

For more information on the ISL59837, please visit http://www.intersil.com/cda/deviceinfo/0,1477,ISL59833,0.html.

Note to editors: To view a high-resolution downloadable photo of the ISL59833 and ISL59837, visit Intersil’s photo room at: http://www.intersil.com/pressroom/photoarchives.asp.

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 http://www.intersil.com/video/. 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, other handheld systems, and notebooks. Intersil’s product families address power management functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators and 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 www.intersil.com.