120 GBd SiGe-Based 2:1 Analog Multiplexer Module for Ultra-Broadband Transmission Systems

C. Schmidt, T. Tannert,J. H. Choi,C. Caspar, D. Pech, S. Wuensch, G. Ropers,J. Schostak,V Jungnickel,R. Freund, M. Groezing,M. Berroth

2021 16th European Microwave Integrated Circuits Conference (EuMIC)（2022）

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摘要

A 2:1 analog multiplexer (AMUX) module based on a SiGe-HBT IC is presented. The AMUX module offers a 6-dB analog signal path bandwidth of 61 GHz. We show a 120 GBd 4-level pulse amplitude modulation (PAM) signal with the AMUX module fed by two CMOS-digital-to-analog converters (DACs), each with 19 GHz analog 3-dB bandwidth only, thus demonstrating high-baud-rate signal generation with bandwidth-limited CMOS DACs enabled by advanced digital signal processing.

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关键词

analog integrated circuits,multiplexing,digital-analog conversion,integrated circuit packaging

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