TriAccess Technologies unveils CATV RFIC amp products
OCTOBER 2, 2007 -- TriAccess Technologies (search for TriAccess) has announced two new products, the TAT7460 and the TAT7464, designed to address emerging CATV, FTTH, and satellite frequency applications for home and infrastructure deployments.
The new TAT7460 is a general-purpose, single-ended, 75-ohm CATV RF amplifier designed for use up to 2,600-MHz bandwidth. It was developed for CATV networks as well as satellite and video ONU receiver applications. The TAT7460 is fabricated using a six-inch GaAs pHEMT technology to provide very low noise performance and low cost.
"The TAT7460 is ideally suited for single stage, home amplifier applications as well as multi-stage 75-ohm gain block applications," said Chris Day, president and chief technology officer for TriAccess Technologies. "It offers excellent gain flatness and return loss, covering 50-2,600 MHz, making it suitable for satellite frequency applications and emerging FTTH RF overlay networks while delivering higher sensitivity and lower power consumption (6.5 V, 115 mA). It was specifically designed for native 75-ohm, high bandwidth applications.
"There is growing global demand for this solution. Major international telecommunications companies in Europe and Japan are already using fiber architectures transmitting satellite frequencies directly to the home. Engineers designing 75-ohm satellite video equipment have been forced to make do with 50-ohm or discrete transistor alternatives originally intended for wireless applications. We believe our new products will greatly simplify the design of 75-ohm systems, especially for those operating above 1,000 MHz," Day added.
The second new product is the TAT7464, a push-pull CATV amplifier designed for higher-output applications, such as switched digital video edge quadrature amplitude modulation (QAM) outputs as well as multiple dwelling unit (MDU) and other fiber-deep receiver applications. It uses the core technology of the TAT7460 to maximize output in a push-pull configuration.
TriAccess asserts that, in some applications, the TAT7464 has been able to reduce power consumption by as much as 40% to 50% when compared with other edge QAM amplifiers today.
"Most CATV systems today support standard analog broadcast video in addition to premium digital content," Day said. "With growing HDTV and other on-demand bandwidth requirements, switched digital video solutions free up bandwidth by delivering selected content, rather than making all channels continuously available to all customers. As demand grows, a higher density of edge QAM ports at hub sites is required, demanding greater power efficiency to reduce heat and improve operational efficiencies."
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