Adaptive Modem from 4-QAM to 1024-QAM "E-band"

Overview

The Binary Core modulation scheme bc011, "E-Band", is specifically designed to operate in 250 MHz channel spacing for E-Band applications. All square and cross modulation formats from 4- up to 1024-QAM are supported. A finely tuneable coding scheme allows to optimize the trade-off between throughput and error performance.

Key Features

  • Eight modulation formats (4-, 16-, 32-, 64-, 128-, 256-, 512-, and 1024-QAM).
  • Up to 2 Gbit throughput in 250 MHz channel spacing.
  • Adaptive modulation switching based on channel measurement and internal service channel signalling.
  • Latency independent of the modulation format.
  • Byte interface compatible with both asynchronous and synchronous data flow.
  • Finely tuneable symbol frequency.
  • Only one external clock source required for the FPGA, with frequency in the range 225-250 MHz.
  • Polynomial predistortion.
  • TX and RX I/Q impairments recovery (amplitude and phase unbalance).
  • Timing recovery with digital re-sampling.
  • Carrier recovery with pilot symbols for improved robustness to phase noise.
  • Automatic frequency recovery for fast carrier acquisition.
  • 20-tap adaptive fractionally spaced equalizer.
  • Finely tuneable multilevel coding scheme based on inner punctured convolutional and BCH codes, and concatenated Reed-Solomon code, with mapping by set partitioning.

Technical Specifications

×
Semiconductor IP