PRODUCT DESCRIPTION
The ARA05050 is a GaAs IC designed to provide the reverse path amplification and output level control functions in a CATV Set-Top Box or Cable Modem. It incorporates a digitally controlled precision step attenuator that is preceded by an ultra low noise amplifier stage, and followed by an ultra-linear output driver amplifier. This device is capable of meeting the MCNS/DOCSIS requirements for harmonic performance at a +58dBmV output level while requiring only a single polarity +5V supply. Both the input and the output are single-ended and matched to 75 Ohms. The precision attenuator provides up to 30 dB of attenuation in 2 dB increments. The ARA05050 is offered in a 28-pin SSOP package that features a heat slug on the bottom of the package,
and is available in a RoHS-compliant option.

FEATURES
*Low Cost Integrated Monolothic GaAs Amplifier With Step Attenuator
*Attenuation Range: 0-30 dB, Adjustable In 2dB Increments Via a 4 Wire Parallel Control
*Meets DOCSIS Distortion Requirements at +58dBmV Output Signal Level
*Low Distortion and Low Noise
*Low Signal toNoise Ratio at All Gain Levels
*Frequency Range: 5-100 MHz
*5 Volt Operation
*RoHS-Compliant Package Option

APPLICATIONS
*MCNS/DOCSIS Compliant Cable Modems
*CATV Interactive Set-Top Box
*OpenCable Set-Top Box
*Fiber Nodes
*Cable Modem Termination Systems (CMTS)

ARA05050S12CTR, ARA05050S12C, ARA05050RS12P1

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