A 161mW 56Gb/s ADC-Based Discrete Multitone Wireline Receiver Data-Path in 14nm FinFET

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The increasing demand on bandwidth for communicating among processors through wired interconnects in large-scale servers motivates the increase in the lane-data-rate from the current 28Gb/s to 56Gb/s or further. Recently published works [1]-[3] demonstrated ADC-based receiver (RX) prototypes equalizing > 56 Gb/s PAM-4 symbols for legacy channels with pre-FEC BERs of less than 2E-4 satisfying IEEE p802.bj/bs pre-FEC BER requirements. While the ADC-based > 56 Gb/s PAM-4 RXs provide strong equalization performance using a large number of feed-forward equalization (FFE) taps and a few decision-feedback equalization (DFE) taps [1], [2] implemented in digital, their power consumption remains excessive due to heavy arithmetic operations in the DSP.
Publisher
IEEE
Issue Date
2019-02
Language
English
Citation

IEEE International Solid- State Circuits Conference (ISSCC), pp.476 - +

ISSN
0193-6530
DOI
10.1109/ISSCC.2019.8662505
URI
http://hdl.handle.net/10203/274991
Appears in Collection
RIMS Conference Papers
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