An 8Gb/s Serial Link Transceiver, using MPPM and PAM schemes

In this paper, a new efficient modulation technique, with 8-bit per symbol data rate is introduced to increase the data rate and decrease the power dissipation. Moreover, a new transceiver architecture is designed to implement the above modulation. The proposed modulation which is named MPPAM is developed by combining the advantages of MPPM modulation and PAM modulation. The return-to-zero nature of this modulation method has this potential to transmit the clock pulses and data together. It means the pin count is reduced by merging the clock signal and 8-bit data into a single transmitted channel. In addition, the need for the clock recovery circuit is mitigated. In the proposed modulation, the value of minimum pulse width (PW) is significantly larger than conventional non-return to zero data PW (Tb). Therefore, the value of ISI in the channel improves considerably.