Date: 21/10/2010

ANADIGIC's RF amplifier supports operation up to 1GHz

GaAs based RF semiconductor specialist ANADIGICS has upgraded its RF amplifier chip to operate up to maximum frequency of 1 GHz. The market demand for such frequency has arise from the increase in demand of (FTTH) and RF-over-Glass (RFoG) communication systems. The improved IC coded ACA2604 will increase the channel capacity of home users who are using FTTH and RfoG based equipments to access the net and other communication services such as high-definition TVs, VOD, and other OTT services which require significant amounts of bandwidth.

The ANADIGICS ACA2604 RF amplifier, driven by the forward path photodiode in a fiber optic RF receiver, forms the optical to electrical interface and boosts overall output to the in-home coax wiring.

"Delivering 1 GHz performance from the ACA2604 is a significant milestone in our efforts to ensure that broadband service providers have the components necessary to provide the highest performance networks," said Joe Cozzarelli, Senior Director, Broadband RF Product Line, ANADIGICS. "As the industry continues to evolve and equipment performance requirements increase, we'll continue to push the limits of innovation to keep our customers ahead on the broadband demand curve."

Additional facts and highlights about the ACA2604 as provided by the Anadigics:

Has an operating frequency between 50 and 1,000 MHz.
The amplifier operates from a single +5 volt supply
Features high linearity: CSO/CTB = - 65 dBc (@ 79 Chan., 21dBmV/ch )
Offers low equivalent input noise: 4.5 pA/rtHz.
Does not require a transformer for interface to photodiode.
Features 22 dB Gain Adjust.
Packaged to be RoHS compliant.
Pin compatible with ANADIGICS' ACA2601 RF amplifier.
Reference circuits and BOMs are available for common applications

Package: 5 mm x 5 mm x 1 mm surface mount

ANADIGICS has also released the latest upstream path RF amplifier optimized for use in DOCSIS-compliant cable modems, CATV set-top boxes (STBs), residential gateways and Embedded-Multimedia Terminal Adapter (E-MTA) applications. Designed to support a new high power operation mode specified in the recently-amended DOCSIS 3.0 telecommunications standard, the ANADIGICS ARA2021 provides the fastest broadband upstream pipe to subscribers located further from the CATV head end, says ANADIGICS.

Additional facts and highlights about the ARA2021:
Supports linear output power levels up to +67 dBmV (single channel).
Integrates a precision step attenuator with up to 49 dB of attenuation in 1dB increments.
Features 35 dB of RF voltage gain (at minimum attenuation).
Offered in a 20-pin, 4 mm x 4 mm x 1mm MLPQ (QFN) package.
Operates in a frequency range from 5 MHz to 85 MHz.
Includes a low-power Transmit Disable (standby) mode that consumes only 35mW.