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ARA05050 Datasheet(PDF) 1 Page - Skyworks Solutions Inc. |
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ARA05050 Datasheet(HTML) 1 Page - Skyworks Solutions Inc. |
1 / 16 page 204227B • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 19, 2016 FEATURES • LowCostIntegratedMonolothicGaAsAmplifier With Step Attenuator • Attenuation Range: 0-30 dB, Adjustable In 2dB Increments Via a 4 Wire Parallel Control • Meets DOCSIS Distortion Requirements at +58dBmV Output Signal Level • Low Distortion and Low Noise • Low Signal toNoise Ratio at All Gain Levels • Frequency Range: 5-100 MHz • 5 Volt Operation • RoHS-Compliant Package Option APPLICATIONS • MCNS/DOCSIS Compliant Cable Modems • CATV Interactive Set-Top Box • OpenCable Set-Top Box • Fiber Nodes • Cable Modem Termination Systems (CMTS) PRODUCT DESCRIPTION The ARA05050 is a GaAs IC 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 amplifierstage,andfollowedbyanultra-linearoutput driver amplifier.This device is capable of meeting the MCNS/DOCSIS requirements for harmonic Figure 1: Cable Modem or Set Top Box Application Diagram S12 Package 28 Pin SSOP with Heat Slug performance at a +58dBmV output level while requiring only a single polarity +5V supply. Both the input and the output are single-ended and matched to 75 Ohms. The precision attenuator provides up to 30 dB of attenuation in 2 dB increments. The ARA05050 is offered in a 28-pin SSOP package that features a heat slug on the bottom of the package, and is available in a RoHS-compliant option. LPF Diplexer ARA05050 SAW Filter Double- Conversion Tuner MAC Upstream QPSK/16QAM Modulator QAM Receiver with FEC Balun Transmit Enable/Disable Attenuation Control Microcontroller with Ethernet MAC RAM ROM 10Base-T Transceiver RJ45 Connector Clock Clock Data Data 54-860 MHz 44 MHz 5-42 MHz 4 LPF Switch ARA05050 ReverseAmplifierwithStepAttenuator Data Sheet |
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