Abstract
This letter reports a 56-Gb/s PAM4, 28-Gb/s PAM2 transmitter that utilizes impedance modulation to implement pre-emphasis postcursor and precursor and low impedance postcursor modes. Implemented as part of a 7-nm FinFET transceiver, the multimode impedance modulated transmitter can compensate for 44- dB/58-dB channel loss in PAM4/PAM2 which is the highest loss compensation reported to date @56 Gbps. The transmitter achieves an impressive figure-of-merit of 0.86-pJ/bit per volt of differential output swing and surpasses its current mode logic based counterpart by a wide margin in terms of power and performance.
Full Text
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call