A 16/32 Gb/s Dual-Mode NRZ/PAM4 SerDes in 65nm CMOS


A dual-mode NRZ/PAM4 SerDes seamlessly supports both modulations with a 1-FIR- and 2-IIR-tap DFE receiver and a 4/2-tap FFE transmitter in NRZ/PAM4 modes, respectively. A source-series-terminated (SST) transmitter employs lookup-table (LUT) control of a 31-segment output DAC to implement FFE equalization in NRZ and PAM4 modes with 1.2 Vpp output swing and… (More)


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