Date: 11/08/2011

Low noise figure, low power dissipating GaAs broadband push-pull amplifier for CATV apps

M/A-COM Technology Solutions Inc. has introduced the MAAM-009455, a new GaAs broadband push-pull CATV amplifier, which features 20.5 dB gain, with broadband linear performance and is an inter-stage or output amplifier.

The MAAM-009455 is a highly linear amplifier, with low noise figure and power dissipation.

"With the introduction of the MAAM-009455, we continue to expand our portfolio of high performance amplifiers for CATV infrastructure applications," said Graham Board, Product Manager. "The MAAM-009455 utilizes M/A-COM Tech's established 0.5 µm MESFET process to deliver a highly linear, 75 O, push-pull amplifier with 20.5 dB of small signal gain."

M/A-COM says the MAAM-009455 has targeted next generation CATV HFC, FTTx, HDTV, and EdgeQAM infrastructure applications, where high gain and low distortion are a requirement. This differential amplifier uses M/A-COM Tech baluns, input and output, in order to ensure second order performance. The amplifier also features external feedback, allowing for gain tuning.

The MAAM-009455 exhibits an gain flatness of 0.5 dB typical over the 50 to 1000 MHz operating band, input return loss has been optimized to achieve better than 20 dB across the band, very low distortion characteristics provide excellent composite second order (CSO), and composite triple beat (CTB) performance, as per M/A-COM. This amplifier exceeds DOCSIS 3.0 DRFI specifications makes it an output stage solution for EdgeQAM head-end infrastructure.

The table below outlines specific part number performance:
Parameters
Units
MAAM-009455

Typ

Frequency
MHz
50 - 1000

Gain
dB
20.5

Operating Voltage
V
8

CTB
dBc
-70

CSO
dBc
-70

Cross Modulation
dBc
-70

Package

QFN 4x4mm, 20-lead plastic



Availability: Production quantities and samples of MAAM-009455 are available.

For more information visit: www.macomtech.com