Address-Programmable Reverse Amplifier with Step Attenuator

The ARA2000 is 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.

The ARA2000 has a programmable address that allows multiple devices to share a common control bus. The ARA2000 is offered in a 28-pin SSOP package featuring a heat slug on the bottom of the package.


  • Low Cost Integrated Amplifier with Step Attenuator.
  • Attenuation range: 0-58 dB, Adjustable in 1 dB Increments via a 3 Wire Serial Control
  • Meets DOCSIS Distortion Requirements at a +60 dBmV Output Signal Level
  • Programmable Address Allows Multiple Parts to Share Control Bus
  • Low Distortion and Low Noise.
  • Frequency Range: 5-100 MHz
  • 5 V Operation.
  • -40 to +85°C Temperature Range
Data Sheets ARA2000: Address-Programmable Reverse Amplifier with Step Attenuator ARA2000_204228B.pdf (1488 KB)
ProductName : ARA2000
Description : Address-Programmable Reverse Amplifier with Step Attenuator
Attenuator Step Size (dB) Typ : 1
Attenuation Range (dB) Typ : 0 to 58
2nd Harmonic Distortion Level (dBc) Max : -53
3rd Harmonic Distortion Level (dBc) Max : -53
Gain Typ. (dB) : 29.3
Noise Figure Typ. (dB) : 3
Noise Figure Max. (dB) : 4
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