Maxim MAX5861 High-Density Downstream Cable Modulator is optimized for converged cable access platform (CCAP) hardware. MAX5861 performs baseband I/Q symbols to RF upconversion to digitally synthesize a selectable combination of Single-Carrier Quadrature Amplitude Modulation (SCQ-AM) and orthogonal frequency-division multiplexing (OFDM) blocks on a single radio frequency port. MAX5861 SCQAM input port A accepts 10-bit Forward Error Correction (FEC)-encoded data for up to 160 (6MHz) individually programmable channels.
Features
9dBm output power0.9V, 1.8V operating supply voltage2.975A operating supply currentHigh-density cable downstream modulatorCombines up to 6x 192MHz blocks of 32x 6MHz SCQAM channels and DOCSIS 3.1 OFDM channelsIntegrated 14-bit 4.9152Gsps RF-DACITU-T J.83 annex A, B, and C SCQAM channelsIFFT processing D3.1 OFDM channels
Applications
DOCSIS 3.0/3.1 and DVB-C/C2CCAP, Edge QAM, CMTS
