112G+7-Bit DAC-Based Transmitter in 7-nm FinFET With PAM4/6/8 Modulation

112G+7-Bit DAC-Based Transmitter in 7-nm FinFET With PAM4/6/8 Modulation

This letter describes a 56 Gbaud 7-bit DAC-based transmitter (TX) demonstrating data rates of 112, 140, and 168 Gb/s in PAM4, PAM6, and PAM8, respectively. The TX with 1.2-Vppd high-swing driver is implemented in a 7-nm FinFET process. Time domain analysis is performed to compare PAM modulation form...

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Veröffentlicht in:IEEE solid-state circuits letters 2022, Vol.5, p.21-24
Hauptverfasser: Chong, Euhan, Shahi, Sina N., Musa, Faisal A., Mustafa, Ahmed N., Krotnev, Peter, Madeira, Paul, Tonietto, Davide
Format: Artikel
Sprache:eng
Schlagworte:
Clocks
DAC
Detectors
Loss measurement
PAM4
PAM6
PAM8
Power efficiency
Pulse amplitude modulation
Sensitivity
SERDES
Signal to noise ratio
Time domain analysis
transmitter (TX)
Transmitters
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Beschreibung
Zusammenfassung:This letter describes a 56 Gbaud 7-bit DAC-based transmitter (TX) demonstrating data rates of 112, 140, and 168 Gb/s in PAM4, PAM6, and PAM8, respectively. The TX with 1.2-Vppd high-swing driver is implemented in a 7-nm FinFET process. Time domain analysis is performed to compare PAM modulation formats. The power efficiency is 1.5 pJ/b (PAM4) and 1.0 pJ/b (PAM8).
ISSN:2573-9603
2573-9603
DOI:10.1109/LSSC.2022.3150251