Table 1 PAM4 transceiver performance comparison
From: A PAM4 transceiver design scheme with threshold adaptive and tap adaptive
References | This Work | [13] | [1] | [12] | [22] |
|---|---|---|---|---|---|
Data-Rate | 112 Gb/s | 56 Gb/s | 40–56 Gb/s | 112 Gb/s | 112 Gb/s |
Modulation | PAM4 | PAM4 | PAM4 | PAM4 | PAM4 |
TX Equalization | 3-tap FFE | 2-tap FFE | 2-tap FFE | 4-tap FFE | 4-tap FFE |
RX Equalization | 3-stage CTLE and 4-tap DFE | 1-stage CTLE and 1-tap FIR and 1-tap IIR DFE | 2-stage CTLE and 10-tap DFE | 2-stage CTLE and ADC-based 31-tap FFE and 1-tap DFE | 3-stage CTLE and ADC-based 31-tap FFE and 1-tap DFE |
Eye Height | 59.6mv | 14 mV | ~ 20 mV | NA | NA |
Eye width | 0.27UI | 0.19UI | ~ 0.05UI | NA | NA |
Channel Loss | 25 dB | 20.8 dB | 10 dB | 37.5 dB | 20 dB |
BER | 10−12 | 10−12 | 10−12 | 10−8 | 2 × 10−5 |
Supply | 1 V | 1.2 V | 0.9 V/1.2 V/1.8 V | 0.88 V/1.2 V/1.5 V | 0.9 V/1.2 V/1.8 V |