News

11 May 2009

 

RFMD extends broadband transmission portfolio for CATV and fiber-deep architectures

RF Micro Devices Inc has expanded its broadband transmission portfolio by releasing samples and pre-production quantities of two new products, in industry-standard SOT115J packages, for current- and next-generation cable TV infrastructure applications.

The D10040300GTH hybrid power doubler amplifier module is designed for CATV infrastructure applications including line amplification and hybrid fiber coaxial (HFC) optical nodes. It operates from 40MHz to 1GHz while typically maintaining 30dB or better gain across the entire frequency range (an industry first for available power doublers, it is claimed). The new module also helps cable operators to upgrade existing distribution networks to 1GHz and enables bandwidth-intensive services such as high-speed data, voice and HDTV. Operators can also exploit the device’s linearity to reduce the number of amplifiers in the network, RFMD says.

The OS10040320PW is a 1GHz hybrid high-dynamic-range optical receiver module designed for use in HFC optical nodes and deep fiber network installations. It contains a single-mode optical input suitable for wavelengths from 1290nm to 1600nm, a terminal for monitoring the PIN diode current, and an electrical output with an impedance of 75 Ohms. The equivalent input noise current (EINC) performance is just 5 picoAmps per root Hertz (typical performance), helping cable operators to implement 'fiber deep' solutions as they upgrade to 1GHz networks. Specifically, by enabling the optical node portion of HFC networks to be placed deeper into CATV networks, the OS10040320PW minimizes requirements for more costly erbium-doped fiber amplifiers (EDFAs), RFMD claims.

Maximum current consumption at 24VDC is 440mA for the D10040300GTH and 260mA for the OS10040320PW.

“As multiple system operators (MSOs) continue to upgrade their CATV infrastructure to 1GHz and implement fiber deep programs, these new products help to lower overall upgrade costs and enhance system performance,” says Alastair Upton, general manager of RFMD’s Broadband Components business unit.

RFMD expects initial shipments of the D10040300GTH and OS10040320PW to start in the September quarter.

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