+A 112Gbps DSP-Based PAM4 SerDes Receiver with a Wide Band Equalization Tuning AFE in 7nm FinFET

this paper presents a 112Gbps DSP-Based PAM4 SerDes receiver with a wide band equalization tuning AFE. The wide band equalization is realized by implementing source degeneration, high-pass branch and inductive peaking. The AFE provides flexible peaking tuning and up to 17.5dB peaking tuning range at Nyquist frequency. With the proposed AFE, the receiver sees eye opening after digital FIR equalization and achieves 6e-9 BER with a 29.6dB insertion loss channel.