MAX5861

PRODUCTION

DOCSIS 3.1 High-Density SCQAM and OFDM Downstream Cable Modulator

Low Power, Fully Integrated, Symbols to RF Solution: 7mW/MHz in a 12mm X 18mm BGA

Data Sheet (Rev. 0) Product Selection Table
Part Models
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Part Details

  • High-Density Cable Downstream Modulator
    • Combine Up to Six 192MHz Blocks of 32 x 6MHz SCQAM Channels and DOCSIS 3.1 OFDM Channels
    • Integrated 14-Bit 4.9152Gsps RF-DAC
  • Highly Flexible and Configurable
    • ITU-T J.83 Annex A, B, and C SCQAM Channels
    • IFFT Processing D3.1 OFDM Channels
    • LVDS or SSTL 1.2/1.5 DDR Data Ports
    • One 10-Bit SCQAM Port with 160-Channel Capacity
    • Two 9-Bit OFDM Ports with 6 OFDM-Channel Capacity
    • Channel Bandwidths:
    • 1MHz to 8MHz SCQAM
    • 24MHz/48MHz/96MHz/192MHz OFDM
    • 192MHz IFFT Bypass Mode
    • Full SCQAM Agility within 192MHz Block
    • Block Agility within 1218MHz Output Bandwidth
  • Additional Features Ease RF Design
    • Programmable Digital Predistortion
    • High Output Power: 9dBm (Peak CW)
  • Low-Power, Compact Solution
    • 5.9W with 128 SCQAMs + 2 OFDM Channels
    • Operating Temperature Range TA = -40°C to TJ = +110°C
    • 12mm x 18mm, 308-Ball LFBGA
MAX5861
DOCSIS 3.1 High-Density SCQAM and OFDM Downstream Cable Modulator
MAX5861: Simplified Block Diagram
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Documentation

Data Sheet 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Modulators and Digital Upconverters 2
MAX5860
PRODUCTION Scalable High-Density Downstream Cable QAM Modulator
MAX5862
NOT RECOMMENDED FOR NEW DESIGNS High-Density Downstream Cable QAM Modulator
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Tools & Simulations

Software Development 1

Evaluation Kits

MAX5861EVKIT

Evaluation Kit for the MAX5861

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Features and Benefits

  • Evaluates Up to 160 SCQAM Channels and/or 6 OFDM Channels
  • Up to 6 Blocks Powered at Once, Where a Block is Defined as an OFDM Channel or a 32-Channel SCQAM Block
  • Single 5.0V Input Voltage Supply
  • Maximum 4.9152Gsps Update Rate
  • Direct Interface with Xilinx® VC707 Data Source Board if Desired
  • Windows XP-, Windows Vista-, and Windows 7/8-Compatible Software
  • On-Board SPI Interface Control for the MAX5861
  • On-Board SMBus Interface Control for the MAX6654 Temperature Sensor
  • GUI Controls for VC707 Operation
  • Pseudo Random Bit Sequence (PRBS) Test Pattern Files
  • Proven 10-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX5861 evaluation kit (EV kit) contains a MAX5861 high-density downstream cable SCQAM and OFDM modulator that integrates a digital up-converter (DUC) and a RF Digital to Analog Converter (RF-DAC). The MAX5861 DUC performs SCQAM and OFDM mapping, pulse shaping, and digital RF up-conversion with full agility and then drives a 14-bit 5Gsps RF-DAC. The device digitally synthesizes RF signals with up to 160 DOCSIS® - compliant 6MHz QAM channels (or up to 120 8MHz QAM channels) on a single RF port at frequencies from 47MHz to 1218MHz. The MAX5861 device provides up to 6 channels of OFDM IFFT processing. Each of the OFDM channels provide up to 192MHz of bandwidth, for a combined potential 1152MHz of modulation bandwidth. The MAX5861 can support up to six blocks powered on at the same time, where a block is defined as an OFDM channel or a 32-channel SCQAM block. The MAX5861 EV kit provides a complete system solution for high-density SCQAM and OFDM modulation targeting the DOCSIS 3.1 solution with very low power dissipation.

The MAX5861 EV kit connects to the FMC connector on the Xilinx VC707 evaluation kit, allowing the VC707 to communicate with the MAX5861’s three input ports and various control signals.

The EV kit includes Windows XP®-, Windows Vista®-, Windows® 7/8-compatible software that provides a simple graphical user interface (GUI) for configuration of all of the MAX5861 registers, control of SPI interface, control of the VC707 FPGA and temperature monitoring.

Applications

  • CCAP, Edge QAM, CMTS
  • DOCSIS 3.0/3.1 and DVB-C/C2
  • Multi-Dweller Units (MDU), Mini-Headends
  • Remote PHY, Coax Media Converters
MAX5861EVKIT
Evaluation Kit for the MAX5861

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