Reference Circuit 5387

QAM Reference Design Using the MAX5880 Modulator and MAX5882 RF DAC


 
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MAX5882
14-Bit, 4.6Gsps Cable Downstream Direct RF Synthesis DAC

  • 4.6Gsps Output Update Rate
  • Industry-Leading DOCSIS 3.0 Performance Noise Floor
  • High Output Power 9dBm (CW)

MAX5880
High-Density Downstream Cable QAM Modulator and Digital Upconverter

  • High-Density: Scalable Up to 128 QAM Channels
  • RRC Filters Support ITU-T J.83 Annex A, B, and C
  • 1MHz to 8MHz Channel Bandwidth

MAXQ2000
Low-Power LCD Microcontroller

  • High-Performance, Low-Power, 16-Bit RISC Core
  • Program and Data Memory
  • Peripheral Features

MAX6642
±1°C, SMBus-Compatible Remote/Local Temperature Sensor with Overtemperature Alarm

  • Integrated Temperature Sensor Enables Simultaneous Dual Temperature (Remote and Local) Measurements
  • Dual Zone Monitoring Automates Over-Temperature Alarms
  • Small Footprint