News

5 November 2009

 

Anadigics launches 1GHz hybrid line amplifiers for CATV

GaAs-based wireless and broadband communications component maker Anadigics Inc of Warren, NJ, USA launched a new family of 1GHz hybrid line amplifiers that leverage the firm’s CATV amplifier technology to provide what is claimed to be exceptional linearity and distortion performance in an industry-standard SOT115J package.

The ACA2764 is a push-pull amplifier that delivers 21.5dB gain and +40dBmV per channel linear output power. The ACA2782 and ACA2784 are power doublers that deliver 21.5dB gain and, respectively, +55dBmV and +58dBmV per channel linear output power. The ACA2786 is a power doubler that delivers 25dB gain and +58dBmV per channel linear output power.

The amplifiers deliver the additional channel spectrum required by multiple systems operators (MSOs) looking to upgrade infrastructure to support higher-throughput applications, such as high-definition video, VOD, and high-data-rate internet.

Over the past 15 years Anadigics has shipped over 20 million line amplifiers in surface-mount packages. Based on this experience, the firm has developed new 1GHz hybrid devices that deliver what is claimed to be unmatched levels of linearity and exceptional return loss, while providing high tolerance to electro-static discharge (ESD), enhancing ruggedness for outdoor operation.

“Our new 1GHz line amplifiers provide MSOs with valuable added spectrum,” says senior product marketing manager Ray Aubert. “With today’s compression technology, some MSOs are maxing out their spectrum as they add more standard and HD channels to their lineup. And as new bandwidth-intensive, high-data-rate technologies such as DOCSIS 3.0 gain momentum, spectrum expansion to 1GHz will become more prevalent,” he adds.

Another trend in the CATV industry is to push the fiber content of hybrid fiber-coax networks deeper towards the subscriber terminal. MSOs now have the opportunity to provide systems that will support growing bandwidth demands by incorporating the latest 1GHz devices when performing node splits, or when installing new fiber nodes and system amplifiers in greenfield deployments.

“We have leveraged our vast experience in GaAs MESFET processes to deliver industry-leading performance,” says Doug Johnson, VP of CATV products. “To assure field ruggedness, our parts have been tested to ESD levels which far exceed any other hybrid available,” he claims.

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