ARA2017
Programmable Gain Amplifier for DOCSIS 3.0 Upstream Path

The ARA2017 is a highly linear, high output power, programmable gain amplifier optimized for DOCSIS 3.0 cable modem and E-MTA applications. Using a low noise input amplification stage and an ultra linear output driver amplifier, the device generates extremely low distortion products at the high output power levels required by DOCSIS 3.0 signals. Its balanced circuit design provides superior harmonic performance and an integrated digitally-controlled, multiple-stage precision step attenuator enables system solutions to meet DOCSIS power step accuracy requirements.

The ARA2017 supports output power levels of +64 dBmV while minimizing harmonic, distortion, and output noise levels. Its precision attenuator provides up to 58 dB of attenuation in 2 dB increments. The attenuator setting is programmed via a 3-wire serial interface, as is the output stage current, a feature which allows the device to be operated in reduced power modes for extended backup battery life in E-MTA applications. The ARA2017 is offered in a 28-pin 5 mm x 5 mm x 1 mm QFN package.

Features

  • High Linearity, High Output Power Integrated Amplifier with Programmable Gain Control
  • Attenuation Range: 0-58 dB, Adjustable in 2 dB Increments via a 3-wire Serial Control
  • 33 dB Gain (at Minimum Attenuation)
  • Low Distortion Products at Output Power Levels up to +64 dBmV
  • Low Noise Figure and Output Noise
  • Frequency range: 5-85 MHz
  • 5 V Operation
  • Materials set consistent with RoHS Directors.
Data Sheets ARA2017: Programmable Gain Amplifier for DOCSIS 3.0 Upstream Path ARA2017_204229B.pdf (650 KB)
ProductName : ARA2017
Description : Programmable Gain Amplifier for DOCSIS 3.0 Upstream Path
Attenuator Step Size (dB) Typ : 2
Attenuation Range (dB) Typ : 0 to 58
2nd Harmonic Distortion Level (dBc) Max : -55
3rd Harmonic Distortion Level (dBc) Max : -55
Gain Typ. (dB) : 36
Noise Figure Typ. (dB) : 2.5
Noise Figure Max. (dB) : TBD
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