ARA2017

Programmable Gain Amplifier for DOCSIS 3.0 Upstream Path

Please note: this product is being discontinued and is not recommended for new designs.

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.

Data Sheets

Talk to Sales ECAD Model

Specifications

DescriptionProgrammable Gain Amplifier for DOCSIS 3.0 Upstream Path

Attenuator Step Size (dB) Typ2

Attenuation Range (dB) Typ0 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

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.

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