Lukas Kull, Danny Luu, et al.
ISSCC 2017
This work presents an ADC-based receiver (RX) data-path for frame-based PAM-4 modulation with a cyclic prefix (CP). Similar to discrete multi-tone (DMT) modulation, a frame of PAM-4 symbols are protected from the channel delay spread by the CP taps. A PAM-4 frame window including CP taps is viewed as a DMT symbol and is equalized similarly to a DMT signal equalization, based on a discrete-time Fourier transform (DFT) and frequency-domain equalizer (FDE). The RX prototype implemented in 14nm FinFET achieves 56Gb/s data-rate at less than 3e-5 pre-FEC BER over a 19dB loss channel at 14GHz dissipating 270mW including the ADC and the DSP data-path excluding the inverse DFT and the BER checker.
Lukas Kull, Danny Luu, et al.
ISSCC 2017
Alessandro Cevrero, Ilter Ozkaya, et al.
ISSCC 2019
Dan Corcos, Danny Elad, et al.
IRMMW-THz 2014
Toke M. Andersen, Florian Krismer, et al.
APEC 2013