11/2012

ARA2017

Programmable Gain Amplifier

DATA SHEET - Rev 2.1

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 Directives.

Surface Mount Package

ApplicATionS

• DOCSIS 3.0 Data Cable Modems and E-MTAs

• CATV Set Top Boxes

pRoDucT DEScRipTion

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.

S29 package

28-pin Qfn

5 mm x 5 mm x 1 mm

figure 1: functional Block Diagram

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, which

is set by programming the register via a 3-wire serial

interface. The output stage current, a feature which

allows the device to be operated in reduced power

modes for extended backup battery life, is also

programmed through the 3-wire serial interface. The

ARA2017 is offered in a 28-pin 5 mm x 5 mm x 1 mm

QFN package.