The ARA2005 is a monolithic GaAs device designed to provide the reverse path amplification and output level control functions in a Cable TV Set Top Box or Cable Modem. It incorporates a digitally controlled precision step attenuator, which is preceded by an ultra low noise amplifier stage and followed by an ulta-linear output driver amplifier. The ARA2005 uses a balanced circuit design that exceeds the MCNS/ DOCSIS requirement for harmonic performance at a +60 dBmV output level while requiring only a single 4